diff --git a/pkgs/applications/audio/jackmeter/default.nix b/pkgs/applications/audio/jackmeter/default.nix
index 060b7f703a31..e44dfddd37b7 100644
--- a/pkgs/applications/audio/jackmeter/default.nix
+++ b/pkgs/applications/audio/jackmeter/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "jackmeter-0.4";
 
   src = fetchurl {
-    url = "http://www.aelius.com/njh/jackmeter/${name}.tar.gz";
+    url = "https://www.aelius.com/njh/jackmeter/${name}.tar.gz";
     sha256 = "1cnvgx3jv0yvxlqy0l9k285zgvazmh5k8m4l7lxckjfm5bn6hm1r";
   };
 
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   meta = { 
     description = "Console jack loudness meter";
-    homepage = http://www.aelius.com/njh/jackmeter/;
+    homepage = https://www.aelius.com/njh/jackmeter/;
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.marcweber ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/audio/mopidy/default.nix b/pkgs/applications/audio/mopidy/default.nix
index 7de8f6941c2b..8541ec6e2727 100644
--- a/pkgs/applications/audio/mopidy/default.nix
+++ b/pkgs/applications/audio/mopidy/default.nix
@@ -33,7 +33,7 @@ pythonPackages.buildPythonApplication rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://www.mopidy.com/;
+    homepage = https://www.mopidy.com/;
     description = ''
       An extensible music server that plays music from local disk, Spotify,
       SoundCloud, Google Play Music, and more
diff --git a/pkgs/applications/audio/mpc/default.nix b/pkgs/applications/audio/mpc/default.nix
index 73352b650921..220e72b568af 100644
--- a/pkgs/applications/audio/mpc/default.nix
+++ b/pkgs/applications/audio/mpc/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A minimalist command line interface to MPD";
-    homepage = http://www.musicpd.org/clients/mpc/;
+    homepage = https://www.musicpd.org/clients/mpc/;
     license = licenses.gpl2;
     maintainers = with maintainers; [ algorith ];
     platforms = with platforms; linux ++ darwin;
diff --git a/pkgs/applications/audio/musescore/default.nix b/pkgs/applications/audio/musescore/default.nix
index 9d6f2fc9c8f9..f56ca009f1e0 100644
--- a/pkgs/applications/audio/musescore/default.nix
+++ b/pkgs/applications/audio/musescore/default.nix
@@ -50,7 +50,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Music notation and composition software";
-    homepage = http://musescore.org/;
+    homepage = https://musescore.org/;
     license = licenses.gpl2;
     platforms = platforms.linux;
     maintainers = [ maintainers.vandenoever ];
diff --git a/pkgs/applications/audio/ncmpc/default.nix b/pkgs/applications/audio/ncmpc/default.nix
index 09c718c63e92..ca147ffc7352 100644
--- a/pkgs/applications/audio/ncmpc/default.nix
+++ b/pkgs/applications/audio/ncmpc/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Curses-based interface for MPD (music player daemon)";
-    homepage    = http://www.musicpd.org/clients/ncmpc/;
+    homepage    = https://www.musicpd.org/clients/ncmpc/;
     license     = licenses.gpl2Plus;
     platforms   = platforms.all;
     maintainers = with maintainers; [ fpletz ];
diff --git a/pkgs/applications/display-managers/lightdm-gtk-greeter/default.nix b/pkgs/applications/display-managers/lightdm-gtk-greeter/default.nix
index 89ccb08b1692..13740dd9dfdb 100644
--- a/pkgs/applications/display-managers/lightdm-gtk-greeter/default.nix
+++ b/pkgs/applications/display-managers/lightdm-gtk-greeter/default.nix
@@ -41,7 +41,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://launchpad.net/lightdm-gtk-greeter;
+    homepage = https://launchpad.net/lightdm-gtk-greeter;
     platforms = platforms.linux;
     license = licenses.gpl3;
     maintainers = with maintainers; [ ocharles wkennington ];
diff --git a/pkgs/applications/editors/geany/default.nix b/pkgs/applications/editors/geany/default.nix
index 5ff5c0845d00..9288d293b916 100644
--- a/pkgs/applications/editors/geany/default.nix
+++ b/pkgs/applications/editors/geany/default.nix
@@ -50,7 +50,7 @@ stdenv.mkDerivation rec {
       - Simple project management
       - Plugin interface
     '';
-    homepage = http://www.geany.org/;
+    homepage = https://www.geany.org/;
     license = "GPL";
     maintainers = [];
     platforms = platforms.all;
diff --git a/pkgs/applications/editors/rstudio/default.nix b/pkgs/applications/editors/rstudio/default.nix
index b508521790bf..bf2363d3939b 100644
--- a/pkgs/applications/editors/rstudio/default.nix
+++ b/pkgs/applications/editors/rstudio/default.nix
@@ -124,7 +124,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib;
     { description = "Set of integrated tools for the R language";
-      homepage = http://www.rstudio.com/;
+      homepage = https://www.rstudio.com/;
       license = licenses.agpl3;
       maintainers = with maintainers; [ ehmry changlinli ciil ];
       platforms = platforms.linux;
diff --git a/pkgs/applications/editors/vbindiff/default.nix b/pkgs/applications/editors/vbindiff/default.nix
index becb5ccc29a1..3a3a0d1a7812 100644
--- a/pkgs/applications/editors/vbindiff/default.nix
+++ b/pkgs/applications/editors/vbindiff/default.nix
@@ -7,13 +7,13 @@ stdenv.mkDerivation rec {
   buildInputs = [ ncurses ];
 
   src = fetchurl {
-    url = "http://www.cjmweb.net/vbindiff/${name}.tar.gz";
+    url = "https://www.cjmweb.net/vbindiff/${name}.tar.gz";
     sha256 = "0gcqy4ggp60qc6blq1q1gc90xmhip1m6yvvli4hdqlz9zn3mlpbx";
   };
 
   meta = {
     description = "A terminal visual binary diff viewer";
-    homepage = http://www.cjmweb.net/vbindiff/;
+    homepage = https://www.cjmweb.net/vbindiff/;
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/applications/graphics/displaycal/default.nix b/pkgs/applications/graphics/displaycal/default.nix
index 80d2b2903678..a845bc63a385 100644
--- a/pkgs/applications/graphics/displaycal/default.nix
+++ b/pkgs/applications/graphics/displaycal/default.nix
@@ -49,7 +49,7 @@ buildPythonPackage {
 
   meta = {
     description = "Display Calibration and Characterization powered by Argyll CMS";
-    homepage = http://displaycal.net/;
+    homepage = https://displaycal.net/;
     license = stdenv.lib.licenses.gpl3;
     maintainers = [stdenv.lib.maintainers.marcweber];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/applications/graphics/meh/default.nix b/pkgs/applications/graphics/meh/default.nix
index ac2a194b7ca4..c25c1277ee0b 100644
--- a/pkgs/applications/graphics/meh/default.nix
+++ b/pkgs/applications/graphics/meh/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A minimal image viewer using raw XLib";
-    homepage = http://www.johnhawthorn.com/meh/;
+    homepage = https://www.johnhawthorn.com/meh/;
     license = stdenv.lib.licenses.mit;
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/graphics/photoqt/default.nix b/pkgs/applications/graphics/photoqt/default.nix
index 82e8793199b6..01affbbbd94c 100644
--- a/pkgs/applications/graphics/photoqt/default.nix
+++ b/pkgs/applications/graphics/photoqt/default.nix
@@ -7,7 +7,7 @@ stdenv.mkDerivation rec {
   version = "1.5.1";
 
   src = fetchurl {
-    url = "http://photoqt.org/pkgs/photoqt-${version}.tar.gz";
+    url = "https://photoqt.org/pkgs/photoqt-${version}.tar.gz";
     sha256 = "17kkpzkmzfnigs26jjyd75iy58qffjsclif81cmviq73lzmqy0b1";
   };
 
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = {
-    homepage = http://photoqt.org/;
+    homepage = https://photoqt.org/;
     description = "Simple, yet powerful and good looking image viewer";
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/misc/airspy/default.nix b/pkgs/applications/misc/airspy/default.nix
index c015a701ab08..9b6771a3925b 100644
--- a/pkgs/applications/misc/airspy/default.nix
+++ b/pkgs/applications/misc/airspy/default.nix
@@ -26,7 +26,7 @@ in
       lib.optionals stdenv.isLinux [ "-DINSTALL_UDEV_RULES=ON" ];
 
     meta = with stdenv.lib; {
-      homepage = http://github.com/airspy/airspyone_host;
+      homepage = https://github.com/airspy/airspyone_host;
       description = "Host tools and driver library for the AirSpy SDR";
       license = licenses.free;
       platforms = with platforms; linux ++ darwin;
diff --git a/pkgs/applications/misc/jekyll/default.nix b/pkgs/applications/misc/jekyll/default.nix
index f3661030a2ba..ad8b7b262e55 100644
--- a/pkgs/applications/misc/jekyll/default.nix
+++ b/pkgs/applications/misc/jekyll/default.nix
@@ -11,7 +11,7 @@ bundlerEnv rec {
 
   meta = with lib; {
     description = "Simple, blog aware, static site generator";
-    homepage    =  http://jekyllrb.com/;
+    homepage    =  https://jekyllrb.com/;
     license     = licenses.mit;
     maintainers = with maintainers; [ pesterhazy ];
     platforms   = platforms.unix;
diff --git a/pkgs/applications/misc/octoprint/default.nix b/pkgs/applications/misc/octoprint/default.nix
index a6d40c75c1c0..972fbfb7b072 100644
--- a/pkgs/applications/misc/octoprint/default.nix
+++ b/pkgs/applications/misc/octoprint/default.nix
@@ -101,7 +101,7 @@ in pythonPackages.buildPythonApplication rec {
   checkPhase = "nosetests";
 
   meta = with stdenv.lib; {
-    homepage = http://octoprint.org/;
+    homepage = https://octoprint.org/;
     description = "The snappy web interface for your 3D printer";
     license = licenses.agpl3;
     maintainers = with maintainers; [ abbradar ];
diff --git a/pkgs/applications/misc/redis-desktop-manager/default.nix b/pkgs/applications/misc/redis-desktop-manager/default.nix
index ca65e4bf7f8e..169d6951d455 100644
--- a/pkgs/applications/misc/redis-desktop-manager/default.nix
+++ b/pkgs/applications/misc/redis-desktop-manager/default.nix
@@ -76,7 +76,7 @@ EOF
 
   meta = with lib; {
     description = "Cross-platform open source Redis DB management tool";
-    homepage = http://redisdesktop.com/;
+    homepage = https://redisdesktop.com/;
     license = licenses.lgpl21;
     platforms = platforms.linux;
     maintainers = with maintainers; [ cstrahan ];
diff --git a/pkgs/applications/misc/terminator/default.nix b/pkgs/applications/misc/terminator/default.nix
index 3959ad88ece9..e4b1d7f8c1bc 100644
--- a/pkgs/applications/misc/terminator/default.nix
+++ b/pkgs/applications/misc/terminator/default.nix
@@ -32,7 +32,7 @@ pythonPackages.buildPythonApplication rec {
       quadkonsole, etc. in that the main focus is arranging terminals in grids
       (tabs is the most common default method, which Terminator also supports).
     '';
-    homepage = http://gnometerminator.blogspot.no/p/introduction.html;
+    homepage = https://gnometerminator.blogspot.no/p/introduction.html;
     license = licenses.gpl2;
     maintainers = with maintainers; [ bjornfor globin ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/timewarrior/default.nix b/pkgs/applications/misc/timewarrior/default.nix
index d417140b29bf..f5201f8061f0 100644
--- a/pkgs/applications/misc/timewarrior/default.nix
+++ b/pkgs/applications/misc/timewarrior/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A command-line time tracker";
-    homepage = http://tasktools.org/projects/timewarrior.html;
+    homepage = https://tasktools.org/projects/timewarrior.html;
     license = licenses.mit;
     maintainers = with maintainers; [ matthiasbeyer ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/misc/urlview/default.nix b/pkgs/applications/misc/urlview/default.nix
index daf93e8c4698..8764c41c8a4c 100644
--- a/pkgs/applications/misc/urlview/default.nix
+++ b/pkgs/applications/misc/urlview/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Extract URLs from text";
-    homepage = http://packages.qa.debian.org/u/urlview.html;
+    homepage = https://packages.qa.debian.org/u/urlview.html;
     license = stdenv.lib.licenses.gpl2;
     platforms = with stdenv.lib.platforms; linux ++ darwin;
   };
diff --git a/pkgs/applications/misc/vifm/default.nix b/pkgs/applications/misc/vifm/default.nix
index ffeca99cf9cb..c43ec5efbaff 100644
--- a/pkgs/applications/misc/vifm/default.nix
+++ b/pkgs/applications/misc/vifm/default.nix
@@ -21,8 +21,8 @@ stdenv.mkDerivation rec {
     maintainers = with maintainers; [ raskin garbas ];
     platforms = platforms.linux;
     license = licenses.gpl2;
-    downloadPage = "http://vifm.info/downloads.shtml";
-    homepage = http://vifm.info/;
+    downloadPage = "https://vifm.info/downloads.shtml";
+    homepage = https://vifm.info/;
     inherit version;
     updateWalker = true;
   };
diff --git a/pkgs/applications/misc/wmname/default.nix b/pkgs/applications/misc/wmname/default.nix
index dfd3c487713b..fe0348cad211 100644
--- a/pkgs/applications/misc/wmname/default.nix
+++ b/pkgs/applications/misc/wmname/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Prints or set the window manager name property of the root window";
-    homepage = http://tools.suckless.org/wmname;
+    homepage = https://tools.suckless.org/wmname;
     license = stdenv.lib.licenses.mit;
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/applications/misc/xfontsel/default.nix b/pkgs/applications/misc/xfontsel/default.nix
index 7d22a1605740..b152badcda47 100644
--- a/pkgs/applications/misc/xfontsel/default.nix
+++ b/pkgs/applications/misc/xfontsel/default.nix
@@ -1,5 +1,5 @@
 # This program used to come with xorg releases, but now I could only find it
-# at http://www.x.org/releases/individual/.
+# at https://www.x.org/releases/individual/.
 # That is why this expression is not inside pkgs.xorg
 
 {stdenv, fetchurl, makeWrapper, libX11, pkgconfig, libXaw}:
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = http://www.x.org/;
+    homepage = https://www.x.org/;
     description = "Allows testing the fonts available in an X server";
     license = stdenv.lib.licenses.free;
     maintainers = with stdenv.lib.maintainers; [viric];
diff --git a/pkgs/applications/misc/zathura/wrapper.nix b/pkgs/applications/misc/zathura/wrapper.nix
index 55ac9bd187a7..0f12251a3df2 100644
--- a/pkgs/applications/misc/zathura/wrapper.nix
+++ b/pkgs/applications/misc/zathura/wrapper.nix
@@ -16,7 +16,7 @@ in symlinkJoin {
   '';
 
   meta = with lib; {
-    homepage = http://pwmt.org/projects/zathura/;
+    homepage = https://pwmt.org/projects/zathura/;
     description = "A highly customizable and functional PDF viewer";
     longDescription = ''
       Zathura is a highly customizable and functional PDF viewer based on the
diff --git a/pkgs/applications/networking/browsers/vimb/default.nix b/pkgs/applications/networking/browsers/vimb/default.nix
index c654723f4c2c..ce06dea70105 100644
--- a/pkgs/applications/networking/browsers/vimb/default.nix
+++ b/pkgs/applications/networking/browsers/vimb/default.nix
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
       editor and also easily configurable during runtime. Vimb is mostly
       keyboard driven and does not detract you from your daily work.
     '';
-    homepage = http://fanglingsu.github.io/vimb/;
+    homepage = https://fanglingsu.github.io/vimb/;
     license = stdenv.lib.licenses.gpl3;
     maintainers = [ stdenv.lib.maintainers.rickynils ];
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/networking/irc/ii/default.nix b/pkgs/applications/networking/irc/ii/default.nix
index c6bb2479bfc1..5e65c0dfeaf8 100644
--- a/pkgs/applications/networking/irc/ii/default.nix
+++ b/pkgs/applications/networking/irc/ii/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = http://tools.suckless.org/ii/;
+    homepage = https://tools.suckless.org/ii/;
     license = stdenv.lib.licenses.mit;
     description = "Irc it, simple FIFO based irc client";
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/applications/networking/irc/quassel/default.nix b/pkgs/applications/networking/irc/quassel/default.nix
index 78646f7a8b2f..7c685b9df6b9 100644
--- a/pkgs/applications/networking/irc/quassel/default.nix
+++ b/pkgs/applications/networking/irc/quassel/default.nix
@@ -74,7 +74,7 @@ in with stdenv; mkDerivation rec {
     '';
 
   meta = with stdenv.lib; {
-    homepage = http://quassel-irc.org/;
+    homepage = https://quassel-irc.org/;
     description = "Qt/KDE distributed IRC client suppporting a remote daemon";
     longDescription = ''
       Quassel IRC is a cross-platform, distributed IRC client,
diff --git a/pkgs/applications/networking/irc/sic/default.nix b/pkgs/applications/networking/irc/sic/default.nix
index 6f48f44214cc..975715ed7fcd 100644
--- a/pkgs/applications/networking/irc/sic/default.nix
+++ b/pkgs/applications/networking/irc/sic/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Simple IRC client";
-    homepage = http://tools.suckless.org/sic/;
+    homepage = https://tools.suckless.org/sic/;
     license = stdenv.lib.licenses.mit;
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/applications/networking/p2p/ncdc/default.nix b/pkgs/applications/networking/p2p/ncdc/default.nix
index 6d204de9ac43..400600751a2e 100644
--- a/pkgs/applications/networking/p2p/ncdc/default.nix
+++ b/pkgs/applications/networking/p2p/ncdc/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Modern and lightweight direct connect client with a friendly ncurses interface";
-    homepage = http://dev.yorhel.nl/ncdc;
+    homepage = https://dev.yorhel.nl/ncdc;
     license = licenses.mit;
     platforms = platforms.linux; # arbitrary
     maintainers = with maintainers; [ ehmry ];
diff --git a/pkgs/applications/networking/p2p/qbittorrent/default.nix b/pkgs/applications/networking/p2p/qbittorrent/default.nix
index a2b72ea99dc0..59c48c0a3d3a 100644
--- a/pkgs/applications/networking/p2p/qbittorrent/default.nix
+++ b/pkgs/applications/networking/p2p/qbittorrent/default.nix
@@ -36,7 +36,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Free Software alternative to µtorrent";
-    homepage    = http://www.qbittorrent.org/;
+    homepage    = https://www.qbittorrent.org/;
     license     = licenses.gpl2;
     platforms   = platforms.linux;
     maintainers = with maintainers; [ viric ];
diff --git a/pkgs/applications/networking/p2p/tribler/default.nix b/pkgs/applications/networking/p2p/tribler/default.nix
index 9d26a74f8bb1..d8e0c76dc490 100644
--- a/pkgs/applications/networking/p2p/tribler/default.nix
+++ b/pkgs/applications/networking/p2p/tribler/default.nix
@@ -71,7 +71,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     maintainers = with maintainers; [ xvapx ];
-    homepage = http://www.tribler.org/;
+    homepage = https://www.tribler.org/;
     description = "A completely decentralised P2P filesharing client based on the Bittorrent protocol";
     license = licenses.lgpl21;
     platforms = platforms.linux;
diff --git a/pkgs/applications/office/ledger/default.nix b/pkgs/applications/office/ledger/default.nix
index 2d66fe4b309e..bb6e529f5d29 100644
--- a/pkgs/applications/office/ledger/default.nix
+++ b/pkgs/applications/office/ledger/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://ledger-cli.org/;
+    homepage = https://ledger-cli.org/;
     description = "A double-entry accounting system with a command-line reporting interface";
     license = licenses.bsd3;
 
diff --git a/pkgs/applications/office/mmex/default.nix b/pkgs/applications/office/mmex/default.nix
index 30b8809f2247..3ddca8fe7620 100644
--- a/pkgs/applications/office/mmex/default.nix
+++ b/pkgs/applications/office/mmex/default.nix
@@ -17,7 +17,7 @@ in
 
     meta = {
       description = "Easy-to-use personal finance software";
-      homepage = http://www.moneymanagerex.org/;
+      homepage = https://www.moneymanagerex.org/;
       license = stdenv.lib.licenses.gpl2Plus;
       maintainers = with stdenv.lib.maintainers; [viric];
       platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/applications/office/mytetra/default.nix b/pkgs/applications/office/mytetra/default.nix
index 9f54f2df6bf2..b752f552ba97 100644
--- a/pkgs/applications/office/mytetra/default.nix
+++ b/pkgs/applications/office/mytetra/default.nix
@@ -25,7 +25,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Smart manager for information collecting";
-    homepage = http://webhamster.ru/site/page/index/articles/projectcode/138;
+    homepage = https://webhamster.ru/site/page/index/articles/projectcode/138;
     license = licenses.gpl3;
     maintainers = [ maintainers.gnidorah ];
     platforms = platforms.linux;
diff --git a/pkgs/applications/office/tagainijisho/default.nix b/pkgs/applications/office/tagainijisho/default.nix
index bd7d537a2c6e..24542041cc87 100644
--- a/pkgs/applications/office/tagainijisho/default.nix
+++ b/pkgs/applications/office/tagainijisho/default.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A free, open-source Japanese dictionary and kanji lookup tool";
-    homepage = http://www.tagaini.net/;
+    homepage = https://www.tagaini.net/;
     license = with licenses; [
       /* program */ gpl3Plus
       /* data */ cc-by-sa-30
diff --git a/pkgs/applications/office/tudu/default.nix b/pkgs/applications/office/tudu/default.nix
index 76ad47950c49..a957cd6eee68 100644
--- a/pkgs/applications/office/tudu/default.nix
+++ b/pkgs/applications/office/tudu/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "0.10";
 
   src = fetchurl {
-    url = "http://code.meskio.net/tudu/${name}.tar.gz";
+    url = "https://code.meskio.net/tudu/${name}.tar.gz";
     sha256 = "0571wh5hn0hgadyx34zq1zi35pzd7vpwkavm7kzb9hwgn07443x4";
   };
 
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "ncurses-based hierarchical todo list manager with vim-like keybindings";
-    homepage = http://code.meskio.net/tudu/;
+    homepage = https://code.meskio.net/tudu/;
     license = stdenv.lib.licenses.gpl3;
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/science/electronics/verilator/default.nix b/pkgs/applications/science/electronics/verilator/default.nix
index 31c2d4f6475e..e34383865576 100644
--- a/pkgs/applications/science/electronics/verilator/default.nix
+++ b/pkgs/applications/science/electronics/verilator/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Fast and robust (System)Verilog simulator/compiler";
-    homepage    = "http://www.veripool.org/wiki/verilator";
+    homepage    = "https://www.veripool.org/wiki/verilator";
     license     = stdenv.lib.licenses.lgpl3;
     platforms   = stdenv.lib.platforms.linux;
     maintainers = with stdenv.lib.maintainers; [ thoughtpolice ];
diff --git a/pkgs/applications/search/doodle/default.nix b/pkgs/applications/search/doodle/default.nix
index 3a9df1505742..ba9fbee5d969 100644
--- a/pkgs/applications/search/doodle/default.nix
+++ b/pkgs/applications/search/doodle/default.nix
@@ -6,12 +6,12 @@ stdenv.mkDerivation rec {
   buildInputs = [ libextractor gettext ];
 
   src = fetchurl {
-    url = "http://grothoff.org/christian/doodle/download/${name}.tar.gz";
+    url = "https://grothoff.org/christian/doodle/download/${name}.tar.gz";
     sha256 = "0ayx5q7chzll9sv3miq35xl36r629cvgdzphf379kxzlzhjldy3j";
   };
 
   meta = {
-    homepage = http://grothoff.org/christian/doodle/;
+    homepage = https://grothoff.org/christian/doodle/;
     description = "Tool to quickly index and search documents on a computer";
     license = stdenv.lib.licenses.gpl2Plus;
     maintainers = with stdenv.lib.maintainers; [viric];
diff --git a/pkgs/applications/video/minitube/default.nix b/pkgs/applications/video/minitube/default.nix
index f70c142ab41d..bef3a78d782e 100644
--- a/pkgs/applications/video/minitube/default.nix
+++ b/pkgs/applications/video/minitube/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
       you an endless video stream. Minitube is not about cloning the YouTube
       website, it aims to create a new TV-like experience.
     '';
-    homepage = http://flavio.tordini.org/minitube;
+    homepage = https://flavio.tordini.org/minitube;
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
     maintainers = with maintainers; [ nckx ];
diff --git a/pkgs/applications/video/ogmtools/default.nix b/pkgs/applications/video/ogmtools/default.nix
index 83e69495b03a..221f4fc0e5c3 100644
--- a/pkgs/applications/video/ogmtools/default.nix
+++ b/pkgs/applications/video/ogmtools/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "ogmtools-1.5";
 
   src = fetchurl {
-    url = "http://www.bunkus.org/videotools/ogmtools/${name}.tar.bz2";
+    url = "https://www.bunkus.org/videotools/ogmtools/${name}.tar.bz2";
     sha256 = "1spx81p5wf59ksl3r3gvf78d77sh7gj8a6lw773iv67bphfivmn8";
   };
 
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
       (ogmdemux) or creation of (ogmmerge) OGG media streams. Includes dvdxchap
       tool for extracting chapter information from DVD.
     '';
-    homepage = http://www.bunkus.org/videotools/ogmtools/;
+    homepage = https://www.bunkus.org/videotools/ogmtools/;
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/applications/virtualization/virtualbox/default.nix b/pkgs/applications/virtualization/virtualbox/default.nix
index d46702d6205b..3e9322ddeafb 100644
--- a/pkgs/applications/virtualization/virtualbox/default.nix
+++ b/pkgs/applications/virtualization/virtualbox/default.nix
@@ -207,7 +207,7 @@ in stdenv.mkDerivation {
   meta = {
     description = "PC emulator";
     license = licenses.gpl2;
-    homepage = http://www.virtualbox.org/;
+    homepage = https://www.virtualbox.org/;
     maintainers = with maintainers; [ flokli sander ];
     platforms = [ "x86_64-linux" "i686-linux" ];
   };
diff --git a/pkgs/applications/window-managers/dwm/default.nix b/pkgs/applications/window-managers/dwm/default.nix
index 9f6c89375182..76352753db1d 100644
--- a/pkgs/applications/window-managers/dwm/default.nix
+++ b/pkgs/applications/window-managers/dwm/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
   buildPhase = " make ";
  
   meta = {
-    homepage = http://suckless.org/;
+    homepage = https://suckless.org/;
     description = "Dynamic window manager for X";
     license = stdenv.lib.licenses.mit;
     maintainers = with stdenv.lib.maintainers; [viric];
diff --git a/pkgs/applications/window-managers/oroborus/default.nix b/pkgs/applications/window-managers/oroborus/default.nix
index d2bf1e5a96de..13eef1c045a4 100644
--- a/pkgs/applications/window-managers/oroborus/default.nix
+++ b/pkgs/applications/window-managers/oroborus/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A really minimalistic X window manager";
-    homepage = http://www.oroborus.org/;
+    homepage = https://www.oroborus.org/;
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.AndersonTorres ];
     platforms = platforms.linux;
diff --git a/pkgs/data/documentation/zeal/default.nix b/pkgs/data/documentation/zeal/default.nix
index 1951429fa907..68a1fb92cc86 100644
--- a/pkgs/data/documentation/zeal/default.nix
+++ b/pkgs/data/documentation/zeal/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
       Zeal is a simple offline API documentation browser inspired by Dash (macOS
       app), available for Linux and Windows.
     '';
-    homepage    = http://zealdocs.org/;
+    homepage    = https://zealdocs.org/;
     license     = licenses.gpl3;
     maintainers = with maintainers; [ skeidel peterhoeg ];
     platforms   = platforms.linux;
diff --git a/pkgs/data/fonts/gentium/default.nix b/pkgs/data/fonts/gentium/default.nix
index 2e2ffdeb5bb4..829eca8c06fc 100644
--- a/pkgs/data/fonts/gentium/default.nix
+++ b/pkgs/data/fonts/gentium/default.nix
@@ -18,7 +18,7 @@ in fetchzip rec {
   sha256 = "1qr2wjdmm93167b0w9cidlf3wwsyjx4838ja9jmm4jkyian5whhp";
 
   meta = with stdenv.lib; {
-    homepage = http://software.sil.org/gentium/;
+    homepage = https://software.sil.org/gentium/;
     description = "A high-quality typeface family for Latin, Cyrillic, and Greek";
     longDescription = ''
       Gentium is a typeface family designed to enable the diverse ethnic groups
@@ -35,7 +35,7 @@ in fetchzip rec {
       This package contains the regular and italic styles for the Gentium Plus
       font family, along with documentation.
     '';
-    downloadPage = "http://software.sil.org/gentium/download/";
+    downloadPage = "https://software.sil.org/gentium/download/";
     maintainers = with maintainers; [ raskin rycee ];
     license = licenses.ofl;
     platforms = platforms.all;
diff --git a/pkgs/data/fonts/open-dyslexic/default.nix b/pkgs/data/fonts/open-dyslexic/default.nix
index 9b1324639720..40a9be3282e0 100644
--- a/pkgs/data/fonts/open-dyslexic/default.nix
+++ b/pkgs/data/fonts/open-dyslexic/default.nix
@@ -16,7 +16,7 @@ in fetchzip {
   sha256 = "045xc7kj56q4ygnjppm8f8fwqqvf21x1piabm4nh8hwgly42a3w2";
 
   meta = with stdenv.lib; {
-    homepage = http://opendyslexic.org/;
+    homepage = https://opendyslexic.org/;
     description = "Font created to increase readability for readers with dyslexia";
     license = "Bitstream Vera License (https://www.gnome.org/fonts/#Final_Bitstream_Vera_Fonts)";
     platforms = platforms.all;
diff --git a/pkgs/desktops/gnome-3/core/sushi/default.nix b/pkgs/desktops/gnome-3/core/sushi/default.nix
index 638c0cbe7dcd..37b311256bd9 100644
--- a/pkgs/desktops/gnome-3/core/sushi/default.nix
+++ b/pkgs/desktops/gnome-3/core/sushi/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = "http://en.wikipedia.org/wiki/Sushi_(software)";
+    homepage = "https://en.wikipedia.org/wiki/Sushi_(software)";
     description = "A quick previewer for Nautilus";
     maintainers = gnome3.maintainers;
     license = licenses.gpl2Plus;
diff --git a/pkgs/desktops/lxde/core/lxappearance/default.nix b/pkgs/desktops/lxde/core/lxappearance/default.nix
index aece5fefaecf..c06a99eb36c2 100644
--- a/pkgs/desktops/lxde/core/lxappearance/default.nix
+++ b/pkgs/desktops/lxde/core/lxappearance/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A lightweight program for configuring the theme and fonts of gtk applications";
-    homepage = http://lxde.org/;
+    homepage = https://lxde.org/;
     maintainers = [ stdenv.lib.maintainers.hinton ];
     platforms = stdenv.lib.platforms.linux;
     license = stdenv.lib.licenses.gpl2;
diff --git a/pkgs/development/compilers/coreclr/default.nix b/pkgs/development/compilers/coreclr/default.nix
index 17d91f36875c..0681e8210a6a 100644
--- a/pkgs/development/compilers/coreclr/default.nix
+++ b/pkgs/development/compilers/coreclr/default.nix
@@ -83,7 +83,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://dotnet.github.io/core/;
+    homepage = https://dotnet.github.io/core/;
     description = ".NET is a general purpose development platform";
     platforms = [ "x86_64-linux" ];
     maintainers = with maintainers; [ kuznero ];
diff --git a/pkgs/development/compilers/mentor/default.nix b/pkgs/development/compilers/mentor/default.nix
index 74905c6ffae4..7cd3c1793661 100644
--- a/pkgs/development/compilers/mentor/default.nix
+++ b/pkgs/development/compilers/mentor/default.nix
@@ -46,7 +46,7 @@ let
 
       meta = with stdenv.lib; {
         inherit description;
-        homepage = http://www.mentor.com/embedded-software/sourcery-tools/sourcery-codebench/editions/lite-edition/;
+        homepage = https://www.mentor.com/embedded-software/sourcery-tools/sourcery-codebench/editions/lite-edition/;
         license = licenses.gpl3;
         platforms = platforms.linux;
         maintainers = [ maintainers.bjornfor ];
diff --git a/pkgs/development/compilers/nim/default.nix b/pkgs/development/compilers/nim/default.nix
index fde4861e982f..a49b1b824394 100644
--- a/pkgs/development/compilers/nim/default.nix
+++ b/pkgs/development/compilers/nim/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "0.17.2";
 
   src = fetchurl {
-    url = "http://nim-lang.org/download/${name}.tar.xz";
+    url = "https://nim-lang.org/download/${name}.tar.xz";
     sha256 = "1gc2xk3ygmz9y4pm75pligssgw995a7gvnfpy445fjpw4d81pzxa";
   };
 
@@ -52,7 +52,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Statically typed, imperative programming language";
-    homepage = http://nim-lang.org/;
+    homepage = https://nim-lang.org/;
     license = licenses.mit;
     maintainers = with maintainers; [ ehmry peterhoeg ];
     platforms = with platforms; linux ++ darwin; # arbitrary
diff --git a/pkgs/development/compilers/rust/rustc.nix b/pkgs/development/compilers/rust/rustc.nix
index d93d8a906e0e..a33b035669fa 100644
--- a/pkgs/development/compilers/rust/rustc.nix
+++ b/pkgs/development/compilers/rust/rustc.nix
@@ -169,7 +169,7 @@ stdenv.mkDerivation {
   # enableParallelBuilding = false;
 
   meta = with stdenv.lib; {
-    homepage = http://www.rust-lang.org/;
+    homepage = https://www.rust-lang.org/;
     description = "A safe, concurrent, practical language";
     maintainers = with maintainers; [ madjar cstrahan wizeman globin havvy wkennington ];
     license = [ licenses.mit licenses.asl20 ];
diff --git a/pkgs/development/libraries/curlcpp/default.nix b/pkgs/development/libraries/curlcpp/default.nix
index c1579b717484..c1c867abcdf5 100644
--- a/pkgs/development/libraries/curlcpp/default.nix
+++ b/pkgs/development/libraries/curlcpp/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ cmake curl ];
 
   meta = with stdenv.lib; {
-    homepage = http://josephp91.github.io/curlcpp/;
+    homepage = https://josephp91.github.io/curlcpp/;
     description = "Object oriented C++ wrapper for CURL";
     platforms = platforms.unix;
     license = licenses.mit;
diff --git a/pkgs/development/libraries/ignition-math/default.nix b/pkgs/development/libraries/ignition-math/default.nix
index 66b21b6fae6c..867ce024d2fe 100644
--- a/pkgs/development/libraries/ignition-math/default.nix
+++ b/pkgs/development/libraries/ignition-math/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://ignitionrobotics.org/libraries/math;
+    homepage = https://ignitionrobotics.org/libraries/math;
     description = "Math library by Ingition Robotics, created for the Gazebo project";
     license = licenses.asl20;
     maintainers = with maintainers; [ pxc ];
diff --git a/pkgs/development/libraries/libmysqlconnectorcpp/default.nix b/pkgs/development/libraries/libmysqlconnectorcpp/default.nix
index 3905ba1b2716..c184e647d286 100644
--- a/pkgs/development/libraries/libmysqlconnectorcpp/default.nix
+++ b/pkgs/development/libraries/libmysqlconnectorcpp/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
   cmakeFlags = [ "-DMYSQL_LIB_DIR=${mysql}/lib" ];
 
   meta = {
-    homepage = http://dev.mysql.com/downloads/connector/cpp/;
+    homepage = https://dev.mysql.com/downloads/connector/cpp/;
     description = "C++ library for connecting to mysql servers.";
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/development/libraries/libserialport/default.nix b/pkgs/development/libraries/libserialport/default.nix
index 812847ea123b..90f0afa5796c 100644
--- a/pkgs/development/libraries/libserialport/default.nix
+++ b/pkgs/development/libraries/libserialport/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "libserialport-0.1.1";
 
   src = fetchurl {
-    url = "http://sigrok.org/download/source/libserialport/${name}.tar.gz";
+    url = "https://sigrok.org/download/source/libserialport/${name}.tar.gz";
     sha256 = "17ajlwgvyyrap8z7f16zcs59pksvncwbmd3mzf98wj7zqgczjaja";
   };
 
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Cross-platform shared library for serial port access";
-    homepage = http://sigrok.org/;
+    homepage = https://sigrok.org/;
     license = licenses.gpl3Plus;
     # macOS, Windows and Android is also supported (according to upstream).
     platforms = platforms.linux;
diff --git a/pkgs/development/libraries/libsexy/default.nix b/pkgs/development/libraries/libsexy/default.nix
index c8751c3e5dd4..49cdb2c95ba0 100644
--- a/pkgs/development/libraries/libsexy/default.nix
+++ b/pkgs/development/libraries/libsexy/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "A collection of GTK+ widgets";
-    homepage = http://blog.chipx86.com/tag/libsexy/;
+    homepage = https://blog.chipx86.com/tag/libsexy/;
     license = licenses.lgpl21;
     maintainers = with maintainers; [ ];
     platforms = platforms.unix;
diff --git a/pkgs/development/libraries/libsrs2/default.nix b/pkgs/development/libraries/libsrs2/default.nix
index a2e94c33ce32..7d9ea25e9d26 100644
--- a/pkgs/development/libraries/libsrs2/default.nix
+++ b/pkgs/development/libraries/libsrs2/default.nix
@@ -5,14 +5,14 @@ stdenv.mkDerivation rec {
   version = "1.0.18";
 
   src = fetchurl {
-    url = "http://www.libsrs2.org/srs/libsrs2-${version}.tar.gz";
+    url = "https://www.libsrs2.org/srs/libsrs2-${version}.tar.gz";
     sha256 = "9d1191b705d7587a5886736899001d04168392bbb6ed6345a057ade50943a492";
   };
 
   meta = {
     description = "The next generation SRS library from the original designer of SRS";
     license = with lib.licenses; [ gpl2 bsd3 ];
-    homepage = http://www.libsrs2.org/;
+    homepage = https://www.libsrs2.org/;
     platforms = stdenv.lib.platforms.linux;
   };
 }
diff --git a/pkgs/development/libraries/libstatgrab/default.nix b/pkgs/development/libraries/libstatgrab/default.nix
index 036bb806f687..72d73e358485 100644
--- a/pkgs/development/libraries/libstatgrab/default.nix
+++ b/pkgs/development/libraries/libstatgrab/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
   buildInputs = [] ++ stdenv.lib.optional stdenv.isDarwin IOKit;
 
   meta = with stdenv.lib; {
-    homepage = http://www.i-scream.org/libstatgrab/;
+    homepage = https://www.i-scream.org/libstatgrab/;
     description = "A library that provides cross platforms access to statistics about the running system";
     license = licenses.gpl2;
     platforms = platforms.unix;
diff --git a/pkgs/development/libraries/libsvm/default.nix b/pkgs/development/libraries/libsvm/default.nix
index a366baf27e33..8d3d2f4c60c7 100644
--- a/pkgs/development/libraries/libsvm/default.nix
+++ b/pkgs/development/libraries/libsvm/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "3.20";
 
   src = fetchurl {
-    url = "http://www.csie.ntu.edu.tw/~cjlin/libsvm/libsvm-${version}.tar.gz";
+    url = "https://www.csie.ntu.edu.tw/~cjlin/libsvm/libsvm-${version}.tar.gz";
     sha256 = "1gj5v5zp1qnsnv0iwxq0ikhf8262d3s5dq6syr6yqkglps0284hg";
   };
 
@@ -30,7 +30,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A library for support vector machines";
-    homepage = http://www.csie.ntu.edu.tw/~cjlin/libsvm/;
+    homepage = https://www.csie.ntu.edu.tw/~cjlin/libsvm/;
     license = licenses.bsd3;
     maintainers = [ maintainers.spwhitt ];
     platforms = platforms.unix;
diff --git a/pkgs/development/libraries/libvdpau/default.nix b/pkgs/development/libraries/libvdpau/default.nix
index ceb42fe2bfc3..eccee83fa85e 100644
--- a/pkgs/development/libraries/libvdpau/default.nix
+++ b/pkgs/development/libraries/libvdpau/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "libvdpau-1.1.1";
 
   src = fetchurl {
-    url = "http://people.freedesktop.org/~aplattner/vdpau/${name}.tar.bz2";
+    url = "https://people.freedesktop.org/~aplattner/vdpau/${name}.tar.bz2";
     sha256 = "857a01932609225b9a3a5bf222b85e39b55c08787d0ad427dbd9ec033d58d736";
   };
 
@@ -21,7 +21,7 @@ stdenv.mkDerivation rec {
   installFlags = [ "moduledir=$(out)/lib/vdpau" ];
 
   meta = with stdenv.lib; {
-    homepage = http://people.freedesktop.org/~aplattner/vdpau/;
+    homepage = https://people.freedesktop.org/~aplattner/vdpau/;
     description = "Library to use the Video Decode and Presentation API for Unix (VDPAU)";
     license = licenses.mit; # expat version
     platforms = platforms.unix;
diff --git a/pkgs/development/libraries/libvorbis/default.nix b/pkgs/development/libraries/libvorbis/default.nix
index 682fcca98a36..f8d61536bef4 100644
--- a/pkgs/development/libraries/libvorbis/default.nix
+++ b/pkgs/development/libraries/libvorbis/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
   doCheck = true;
 
   meta = with stdenv.lib; {
-    homepage = http://xiph.org/vorbis/;
+    homepage = https://xiph.org/vorbis/;
     license = licenses.bsd3;
     maintainers = [ maintainers.ehmry ];
     platforms = platforms.all;
diff --git a/pkgs/development/libraries/libvpx/default.nix b/pkgs/development/libraries/libvpx/default.nix
index 4b50fe090e38..1e96ff9bb1ad 100644
--- a/pkgs/development/libraries/libvpx/default.nix
+++ b/pkgs/development/libraries/libvpx/default.nix
@@ -173,7 +173,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "WebM VP8/VP9 codec SDK";
-    homepage    = http://www.webmproject.org/;
+    homepage    = https://www.webmproject.org/;
     license     = licenses.bsd3;
     maintainers = with maintainers; [ codyopel ];
     platforms   = platforms.all;
diff --git a/pkgs/development/libraries/libzip/default.nix b/pkgs/development/libraries/libzip/default.nix
index 850bb27e3641..131b64c1c7f2 100644
--- a/pkgs/development/libraries/libzip/default.nix
+++ b/pkgs/development/libraries/libzip/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "1.3.0";
 
   src = fetchurl {
-    url = "http://www.nih.at/libzip/${name}.tar.gz";
+    url = "https://www.nih.at/libzip/${name}.tar.gz";
     sha256 = "1633dvjc08zwwhzqhnv62rjf1abx8y5njmm8y16ik9iwd07ka6d9";
   };
 
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = http://www.nih.at/libzip;
+    homepage = https://www.nih.at/libzip;
     description = "A C library for reading, creating and modifying zip archives";
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/development/libraries/lightstep-tracer-cpp/default.nix b/pkgs/development/libraries/lightstep-tracer-cpp/default.nix
index 9aea42082c51..f5660e93d79a 100644
--- a/pkgs/development/libraries/lightstep-tracer-cpp/default.nix
+++ b/pkgs/development/libraries/lightstep-tracer-cpp/default.nix
@@ -44,7 +44,7 @@ stdenv.mkDerivation rec {
 
   meta = with lib; {
     description = "Distributed tracing system built on top of the OpenTracing standard";
-    homepage = "http://lightstep.com/";
+    homepage = "https://lightstep.com/";
     license = licenses.mit;
     platforms = platforms.linux;
     maintainers = with maintainers; [ cstrahan ];
diff --git a/pkgs/development/libraries/mesa/default.nix b/pkgs/development/libraries/mesa/default.nix
index 4c00df4c17d8..e1fe061a9651 100644
--- a/pkgs/development/libraries/mesa/default.nix
+++ b/pkgs/development/libraries/mesa/default.nix
@@ -214,7 +214,7 @@ stdenv.mkDerivation {
 
   meta = with stdenv.lib; {
     description = "An open source implementation of OpenGL";
-    homepage = http://www.mesa3d.org/;
+    homepage = https://www.mesa3d.org/;
     license = licenses.mit; # X11 variant, in most files
     platforms = platforms.mesaPlatforms;
     maintainers = with maintainers; [ eduarrrd vcunat ];
diff --git a/pkgs/development/libraries/mlt/qt-5.nix b/pkgs/development/libraries/mlt/qt-5.nix
index f3bdc005247c..7111a78381d1 100644
--- a/pkgs/development/libraries/mlt/qt-5.nix
+++ b/pkgs/development/libraries/mlt/qt-5.nix
@@ -69,7 +69,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Open source multimedia framework, designed for television broadcasting";
-    homepage = http://www.mltframework.org/;
+    homepage = https://www.mltframework.org/;
     license = licenses.gpl3;
     maintainers = [ maintainers.goibhniu ];
     platforms = platforms.linux;
diff --git a/pkgs/development/libraries/mps/default.nix b/pkgs/development/libraries/mps/default.nix
index 4e4ddfb63899..5a841f165cab 100644
--- a/pkgs/development/libraries/mps/default.nix
+++ b/pkgs/development/libraries/mps/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "1.116.0";
 
   src = fetchurl {
-    url    = "http://www.ravenbrook.com/project/mps/release/${version}/mps-kit-${version}.tar.gz";
+    url    = "https://www.ravenbrook.com/project/mps/release/${version}/mps-kit-${version}.tar.gz";
     sha256 = "1k7vnanpgawnj84x2xs6md57pfib9p7c3acngqzkl3c2aqw8qay0";
   };
 
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A flexible memory management and garbage collection library";
-    homepage    = "http://www.ravenbrook.com/project/mps";
+    homepage    = "https://www.ravenbrook.com/project/mps";
     license     = stdenv.lib.licenses.sleepycat;
     platforms   = stdenv.lib.platforms.linux;
     maintainers = [ stdenv.lib.maintainers.thoughtpolice ];
diff --git a/pkgs/development/libraries/ndpi/default.nix b/pkgs/development/libraries/ndpi/default.nix
index f1232d7d253a..c84cddc897c1 100644
--- a/pkgs/development/libraries/ndpi/default.nix
+++ b/pkgs/development/libraries/ndpi/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
     longDescription = ''
       nDPI is a library for deep-packet inspection based on OpenDPI.
     '';
-    homepage = http://www.ntop.org/products/deep-packet-inspection/ndpi/;
+    homepage = https://www.ntop.org/products/deep-packet-inspection/ndpi/;
     license = with licenses; lgpl3;
     maintainers = with maintainers; [ takikawa ];
     platforms = with platforms; unix;
diff --git a/pkgs/development/libraries/netcdf-cxx4/default.nix b/pkgs/development/libraries/netcdf-cxx4/default.nix
index de9023a57106..d67fdc110f04 100644
--- a/pkgs/development/libraries/netcdf-cxx4/default.nix
+++ b/pkgs/development/libraries/netcdf-cxx4/default.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "C++ API to manipulate netcdf files";
-    homepage = http://www.unidata.ucar.edu/software/netcdf/;
+    homepage = https://www.unidata.ucar.edu/software/netcdf/;
     license = stdenv.lib.licenses.free;
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/development/libraries/ogre/default.nix b/pkgs/development/libraries/ogre/default.nix
index aba02827665b..a12d23ed5b1d 100644
--- a/pkgs/development/libraries/ogre/default.nix
+++ b/pkgs/development/libraries/ogre/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "A 3D engine";
-    homepage = http://www.ogre3d.org/;
+    homepage = https://www.ogre3d.org/;
     maintainers = [ stdenv.lib.maintainers.raskin ];
     platforms = stdenv.lib.platforms.linux;
     license = stdenv.lib.licenses.mit;
diff --git a/pkgs/development/libraries/opencv/default.nix b/pkgs/development/libraries/opencv/default.nix
index aadd108620aa..cbac7210a10e 100644
--- a/pkgs/development/libraries/opencv/default.nix
+++ b/pkgs/development/libraries/opencv/default.nix
@@ -85,7 +85,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Open Computer Vision Library with more than 500 algorithms";
-    homepage = http://opencv.org/;
+    homepage = https://opencv.org/;
     license = licenses.bsd3;
     maintainers = with maintainers; [ viric ];
     platforms = platforms.linux ++ platforms.darwin;
diff --git a/pkgs/development/libraries/speex/default.nix b/pkgs/development/libraries/speex/default.nix
index 602359965f12..173b460a0ab2 100644
--- a/pkgs/development/libraries/speex/default.nix
+++ b/pkgs/development/libraries/speex/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.speex.org/;
+    homepage = https://www.speex.org/;
     description = "An Open Source/Free Software patent-free audio compression format designed for speech";
     license = licenses.bsd3;
     platforms = platforms.unix;
diff --git a/pkgs/development/libraries/theft/default.nix b/pkgs/development/libraries/theft/default.nix
index a0110c5f22b2..2a1180533cea 100644
--- a/pkgs/development/libraries/theft/default.nix
+++ b/pkgs/development/libraries/theft/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   meta = {
     description = "A C library for property-based testing";
     platforms = stdenv.lib.platforms.linux;
-    homepage = "http://github.com/silentbicycle/theft/";
+    homepage = "https://github.com/silentbicycle/theft/";
     license = stdenv.lib.licenses.isc;
     maintainers = [ stdenv.lib.maintainers.kquick ];
   };
diff --git a/pkgs/development/libraries/tremor/default.nix b/pkgs/development/libraries/tremor/default.nix
index fec256e703fe..5e08a61cd1bb 100644
--- a/pkgs/development/libraries/tremor/default.nix
+++ b/pkgs/development/libraries/tremor/default.nix
@@ -17,7 +17,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = http://xiph.org/tremor/;
+    homepage = https://xiph.org/tremor/;
     description = "Fixed-point version of the Ogg Vorbis decoder";
     license = stdenv.lib.licenses.bsd3;
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/development/libraries/vaapi-intel/default.nix b/pkgs/development/libraries/vaapi-intel/default.nix
index edb2a8214dde..7bd036cf2e5a 100644
--- a/pkgs/development/libraries/vaapi-intel/default.nix
+++ b/pkgs/development/libraries/vaapi-intel/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = http://cgit.freedesktop.org/vaapi/intel-driver/;
+    homepage = https://cgit.freedesktop.org/vaapi/intel-driver/;
     license = licenses.mit;
     description = "Intel driver for the VAAPI library";
     platforms = platforms.unix;
diff --git a/pkgs/development/libraries/vaapi-vdpau/default.nix b/pkgs/development/libraries/vaapi-vdpau/default.nix
index 4522ecc1bb63..f0089110c3c8 100644
--- a/pkgs/development/libraries/vaapi-vdpau/default.nix
+++ b/pkgs/development/libraries/vaapi-vdpau/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
 
 
   meta = {
-    homepage = http://cgit.freedesktop.org/vaapi/vdpau-driver/;
+    homepage = https://cgit.freedesktop.org/vaapi/vdpau-driver/;
     license = stdenv.lib.licenses.gpl2Plus;
     description = "VDPAU driver for the VAAPI library";
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/development/libraries/vigra/default.nix b/pkgs/development/libraries/vigra/default.nix
index 324d977c72e5..438b4eda454b 100644
--- a/pkgs/development/libraries/vigra/default.nix
+++ b/pkgs/development/libraries/vigra/default.nix
@@ -28,7 +28,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Novel computer vision C++ library with customizable algorithms and data structures";
-    homepage = http://hci.iwr.uni-heidelberg.de/vigra;
+    homepage = https://hci.iwr.uni-heidelberg.de/vigra;
     license = licenses.mit;
     maintainers = [ maintainers.viric ];
     platforms = platforms.linux;
diff --git a/pkgs/development/libraries/vmime/default.nix b/pkgs/development/libraries/vmime/default.nix
index 9bef1b27e9cd..e0398487abc3 100644
--- a/pkgs/development/libraries/vmime/default.nix
+++ b/pkgs/development/libraries/vmime/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation rec {
   ];
 
   meta = {
-    homepage = http://www.vmime.org/;
+    homepage = https://www.vmime.org/;
     description = "Free mail library for C++";
     license = stdenv.lib.licenses.gpl3;
     maintainers = with stdenv.lib.maintainers; [viric];
diff --git a/pkgs/development/libraries/vmmlib/default.nix b/pkgs/development/libraries/vmmlib/default.nix
index ccdf2b05e7e3..18b9278539fc 100644
--- a/pkgs/development/libraries/vmmlib/default.nix
+++ b/pkgs/development/libraries/vmmlib/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
             computations and frustum culling classes, and spatial data structures'';
 
     license     = licenses.bsd2;
-    homepage    = http://github.com/VMML/vmmlib/;
+    homepage    = https://github.com/VMML/vmmlib/;
     maintainers = [ maintainers.adev ];
     platforms   = platforms.all;
   };
diff --git a/pkgs/development/libraries/wayland/default.nix b/pkgs/development/libraries/wayland/default.nix
index 5def37b791cf..a5b7a6a99ce4 100644
--- a/pkgs/development/libraries/wayland/default.nix
+++ b/pkgs/development/libraries/wayland/default.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
   version = "1.14.0";
 
   src = fetchurl {
-    url = "http://wayland.freedesktop.org/releases/${name}.tar.xz";
+    url = "https://wayland.freedesktop.org/releases/${name}.tar.xz";
     sha256 = "1f3sla6h0bw15fz8pjc67jhwj7pwmfdc7qlj42j5k9v116ycm07d";
   };
 
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Reference implementation of the wayland protocol";
-    homepage    = http://wayland.freedesktop.org/;
+    homepage    = https://wayland.freedesktop.org/;
     license     = lib.licenses.mit;
     platforms   = lib.platforms.linux;
     maintainers = with lib.maintainers; [ codyopel wkennington ];
diff --git a/pkgs/development/libraries/websocket++/default.nix b/pkgs/development/libraries/websocket++/default.nix
index fbfc460db96d..8a0ec2523b94 100644
--- a/pkgs/development/libraries/websocket++/default.nix
+++ b/pkgs/development/libraries/websocket++/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ cmake ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.zaphoyd.com/websocketpp/;
+    homepage = https://www.zaphoyd.com/websocketpp/;
     description = "C++/Boost Asio based websocket client/server library";
     license = licenses.bsd3;
     platforms = platforms.unix;
diff --git a/pkgs/development/libraries/wxsqlite3/default.nix b/pkgs/development/libraries/wxsqlite3/default.nix
index a06003997845..49f12842533b 100644
--- a/pkgs/development/libraries/wxsqlite3/default.nix
+++ b/pkgs/development/libraries/wxsqlite3/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation rec {
     ++ stdenv.lib.optionals stdenv.isDarwin [ darwin.apple_sdk.frameworks.Cocoa darwin.stubs.setfile darwin.stubs.rez darwin.stubs.derez ];
 
   meta = with stdenv.lib; {
-    homepage = http://utelle.github.io/wxsqlite3/ ;
+    homepage = https://utelle.github.io/wxsqlite3/ ;
     description = "A C++ wrapper around the public domain SQLite 3.x for wxWidgets";
     platforms = platforms.unix;
     maintainers = with maintainers; [ vrthra ];
diff --git a/pkgs/development/libraries/xapian/default.nix b/pkgs/development/libraries/xapian/default.nix
index 36a73bc6d2ba..482c765dcda9 100644
--- a/pkgs/development/libraries/xapian/default.nix
+++ b/pkgs/development/libraries/xapian/default.nix
@@ -27,7 +27,7 @@ let
 
     meta = with stdenv.lib; {
       description = "Search engine library";
-      homepage = http://xapian.org/;
+      homepage = https://xapian.org/;
       license = licenses.gpl2Plus;
       maintainers = with maintainers; [ chaoflow ];
       platforms = platforms.unix;
diff --git a/pkgs/development/libraries/xcb-util-cursor/HEAD.nix b/pkgs/development/libraries/xcb-util-cursor/HEAD.nix
index 4ccdcb19f81f..17f8646b5177 100644
--- a/pkgs/development/libraries/xcb-util-cursor/HEAD.nix
+++ b/pkgs/development/libraries/xcb-util-cursor/HEAD.nix
@@ -13,7 +13,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "XCB cursor library (libxcursor port)";
-    homepage    = http://cgit.freedesktop.org/xcb/util-cursor;
+    homepage    = https://cgit.freedesktop.org/xcb/util-cursor;
     license     = licenses.mit;
     maintainers = with maintainers; [ lovek323 ];
     platforms   = platforms.linux ++ platforms.darwin;
diff --git a/pkgs/development/ocaml-modules/cpdf/default.nix b/pkgs/development/ocaml-modules/cpdf/default.nix
index 07909d1a465a..dc6cf491eb44 100644
--- a/pkgs/development/ocaml-modules/cpdf/default.nix
+++ b/pkgs/development/ocaml-modules/cpdf/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation {
   '';
 
   meta = {
-    homepage = http://www.coherentpdf.com/;
+    homepage = https://www.coherentpdf.com/;
     platforms = ocaml.meta.platforms or [];
     description = "PDF Command Line Tools";
     maintainers = with stdenv.lib.maintainers; [ vbgl ];
diff --git a/pkgs/development/tools/build-managers/pants/default.nix b/pkgs/development/tools/build-managers/pants/default.nix
index 8ce495557e7f..abb32f257607 100644
--- a/pkgs/development/tools/build-managers/pants/default.nix
+++ b/pkgs/development/tools/build-managers/pants/default.nix
@@ -32,7 +32,7 @@ in buildPythonApplication rec {
 
   meta = {
     description = "A build system for software projects in a variety of languages";
-    homepage    = "http://www.pantsbuild.org/";
+    homepage    = "https://www.pantsbuild.org/";
     license     = licenses.asl20;
     maintainers = with maintainers; [ copumpkin ];
     platforms   = platforms.unix;
diff --git a/pkgs/development/tools/misc/opengrok/default.nix b/pkgs/development/tools/misc/opengrok/default.nix
index c2268ba8da20..cdfa51d6f2bd 100644
--- a/pkgs/development/tools/misc/opengrok/default.nix
+++ b/pkgs/development/tools/misc/opengrok/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Source code search and cross reference engine";
-    homepage = http://opengrok.github.io/OpenGrok/;
+    homepage = https://opengrok.github.io/OpenGrok/;
     license = licenses.cddl;
     maintainers = [ maintainers.lethalman ];
   };
diff --git a/pkgs/development/tools/misc/sloccount/default.nix b/pkgs/development/tools/misc/sloccount/default.nix
index cf143f7d9e9d..28500ee08eee 100644
--- a/pkgs/development/tools/misc/sloccount/default.nix
+++ b/pkgs/development/tools/misc/sloccount/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "sloccount-2.26";
 
   src = fetchurl {
-    url = "http://www.dwheeler.com/sloccount/${name}.tar.gz";
+    url = "https://www.dwheeler.com/sloccount/${name}.tar.gz";
     sha256 = "0ayiwfjdh1946asah861ah9269s5xkc8p5fv1wnxs9znyaxs4zzs";
   };
 
@@ -56,7 +56,7 @@ stdenv.mkDerivation rec {
 
     license = stdenv.lib.licenses.gpl2Plus;
 
-    homepage = http://www.dwheeler.com/sloccount/;
+    homepage = https://www.dwheeler.com/sloccount/;
 
     maintainers = [ ];
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/development/tools/misc/teensy-loader-cli/default.nix b/pkgs/development/tools/misc/teensy-loader-cli/default.nix
index 7b360655c4f7..4263b80789a2 100644
--- a/pkgs/development/tools/misc/teensy-loader-cli/default.nix
+++ b/pkgs/development/tools/misc/teensy-loader-cli/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation {
   meta = with stdenv.lib; {
     license = licenses.gpl3;
     description = "Firmware uploader for the Teensy microcontroller boards";
-    homepage = http://www.pjrc.com/teensy/;
+    homepage = https://www.pjrc.com/teensy/;
     maintainers = with maintainers; [ the-kenny ];
     platforms = platforms.linux;
   };
diff --git a/pkgs/development/tools/ocaml/ocaml-top/default.nix b/pkgs/development/tools/ocaml/ocaml-top/default.nix
index e9331d078cf3..3cf70d66ddbd 100644
--- a/pkgs/development/tools/ocaml/ocaml-top/default.nix
+++ b/pkgs/development/tools/ocaml/ocaml-top/default.nix
@@ -22,7 +22,7 @@ stdenv.mkDerivation {
   inherit (jbuilder) installPhase;
 
   meta = {
-    homepage = http://www.typerex.org/ocaml-top.html;
+    homepage = https://www.typerex.org/ocaml-top.html;
     license = stdenv.lib.licenses.gpl3;
     description = "A simple cross-platform OCaml code editor built for top-level evaluation";
     platforms = ocamlPackages.ocaml.meta.platforms or [];
diff --git a/pkgs/development/tools/ocaml/ocp-build/default.nix b/pkgs/development/tools/ocaml/ocp-build/default.nix
index 2a9a634d0a4a..8da0f781a8b2 100644
--- a/pkgs/development/tools/ocaml/ocp-build/default.nix
+++ b/pkgs/development/tools/ocaml/ocp-build/default.nix
@@ -22,7 +22,7 @@ buildOcaml {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://www.typerex.org/ocp-build.html;
+    homepage = https://www.typerex.org/ocp-build.html;
     description = "A build tool for OCaml";
     longDescription = ''
       ocp-build is a build system for OCaml application, based on simple
diff --git a/pkgs/games/mnemosyne/default.nix b/pkgs/games/mnemosyne/default.nix
index 03052c52f7fe..02bd0ba78d18 100644
--- a/pkgs/games/mnemosyne/default.nix
+++ b/pkgs/games/mnemosyne/default.nix
@@ -26,7 +26,7 @@ in pythonPackages.buildPythonApplication rec {
     rm -r $out/lib/python2.7/site-packages/nix
   '';
   meta = {
-    homepage = http://mnemosyne-proj.org/;
+    homepage = https://mnemosyne-proj.org/;
     description = "Spaced-repetition software";
     longDescription = ''
       The Mnemosyne Project has two aspects:
diff --git a/pkgs/games/moon-buggy/default.nix b/pkgs/games/moon-buggy/default.nix
index 8ea8dfccb166..d0c07b71e2ea 100644
--- a/pkgs/games/moon-buggy/default.nix
+++ b/pkgs/games/moon-buggy/default.nix
@@ -19,6 +19,6 @@ stdenv.mkDerivation rec {
     license = stdenv.lib.licenses.gpl2;
     maintainers = [stdenv.lib.maintainers.rybern];
     platforms = stdenv.lib.platforms.linux;
-    homepage = http://www.seehuhn.de/pages/moon-buggy;
+    homepage = https://www.seehuhn.de/pages/moon-buggy;
   };
 }
diff --git a/pkgs/games/neverball/default.nix b/pkgs/games/neverball/default.nix
index 0006f895809b..62d89c7c31e5 100644
--- a/pkgs/games/neverball/default.nix
+++ b/pkgs/games/neverball/default.nix
@@ -4,7 +4,7 @@
 stdenv.mkDerivation rec {
   name = "neverball-1.6.0";
   src = fetchurl {
-    url = "http://neverball.org/${name}.tar.gz";
+    url = "https://neverball.org/${name}.tar.gz";
     sha256 = "184gm36c6p6vaa6gwrfzmfh86klhnb03pl40ahsjsvprlk667zkk";
   };
 
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = {
-    homepage = http://neverball.org/;
+    homepage = https://neverball.org/;
     description = "Tilt the floor to roll a ball";
     license = "GPL";
     maintainers = with stdenv.lib.maintainers; [viric];
diff --git a/pkgs/games/teeworlds/default.nix b/pkgs/games/teeworlds/default.nix
index 504353afebef..bd37ba0f01fb 100644
--- a/pkgs/games/teeworlds/default.nix
+++ b/pkgs/games/teeworlds/default.nix
@@ -61,7 +61,7 @@ stdenv.mkDerivation rec {
       Flag.  You can even design your own maps!
     '';
 
-    homepage = http://teeworlds.com/;
+    homepage = https://teeworlds.com/;
     license = "BSD-style, see `license.txt'";
     maintainers = with stdenv.lib.maintainers; [ astsmtl ];
     platforms = with stdenv.lib.platforms; linux;
diff --git a/pkgs/games/tome4/default.nix b/pkgs/games/tome4/default.nix
index ad9b5f7dc6cd..f07fd88fbaf3 100644
--- a/pkgs/games/tome4/default.nix
+++ b/pkgs/games/tome4/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   version = "1.4.9";
   name = "tome4-${version}";
   src = fetchurl {
-    url = "http://te4.org/dl/t-engine/t-engine4-src-${version}.tar.bz2";
+    url = "https://te4.org/dl/t-engine/t-engine4-src-${version}.tar.bz2";
     sha256 = "0c82m0g1ps64zghgdrp78m6bvfngcb75whhknqiailld7kz1g9xl";
   };
   nativeBuildInputs = [ premake4 ];
@@ -34,7 +34,7 @@ EOF
     cp -r game $out/opt/tome4
   '';
   meta = with stdenv.lib; {
-    homepage = http://te4.org/;
+    homepage = https://te4.org/;
     description = "Tales of Maj'eyal (rogue-like game)";
     maintainers = [ maintainers.chattered ];
     license = licenses.gpl3;
diff --git a/pkgs/games/unnethack/default.nix b/pkgs/games/unnethack/default.nix
index 57749c4f228c..a1a8272fd0f9 100644
--- a/pkgs/games/unnethack/default.nix
+++ b/pkgs/games/unnethack/default.nix
@@ -47,7 +47,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Fork of NetHack";
-    homepage = http://unnethack.wordpress.com/;
+    homepage = https://unnethack.wordpress.com/;
     license = "nethack";
     platforms = platforms.all;
     maintainers = with maintainers; [ abbradar ];
diff --git a/pkgs/misc/drivers/xboxdrv/default.nix b/pkgs/misc/drivers/xboxdrv/default.nix
index ffb2052ca0c1..8262eea48b43 100644
--- a/pkgs/misc/drivers/xboxdrv/default.nix
+++ b/pkgs/misc/drivers/xboxdrv/default.nix
@@ -19,7 +19,7 @@ in stdenv.mkDerivation {
   buildInputs = [ scons libX11 libusb1 boost glib dbus_glib];
 
   meta = with stdenv.lib; {
-    homepage = http://pingus.seul.org/~grumbel/xboxdrv/;
+    homepage = https://pingus.seul.org/~grumbel/xboxdrv/;
     description = "Xbox/Xbox360 (and more) gamepad driver for Linux that works in userspace";
     license = licenses.gpl3Plus;
     maintainers = [ maintainers.fuuzetsu ];
diff --git a/pkgs/misc/emulators/gens-gs/default.nix b/pkgs/misc/emulators/gens-gs/default.nix
index bfe43403bc6c..74aa29e84ef8 100644
--- a/pkgs/misc/emulators/gens-gs/default.nix
+++ b/pkgs/misc/emulators/gens-gs/default.nix
@@ -16,7 +16,7 @@ stdenv.mkDerivation {
   NIX_CFLAGS_COMPILE = "-UGTK_DISABLE_DEPRECATED -UGSEAL_ENABLE";
 
   meta = {
-    homepage = http://segaretro.org/Gens/GS;
+    homepage = https://segaretro.org/Gens/GS;
     description = "A Genesis/Mega Drive emulator";
     platforms = [ "i686-linux" ];
     maintainers = [ stdenv.lib.maintainers.eelco ];
diff --git a/pkgs/misc/screensavers/xscreensaver/default.nix b/pkgs/misc/screensavers/xscreensaver/default.nix
index 87b55e3948b8..d77526775a54 100644
--- a/pkgs/misc/screensavers/xscreensaver/default.nix
+++ b/pkgs/misc/screensavers/xscreensaver/default.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation rec {
   name = "xscreensaver-${version}";
 
   src = fetchurl {
-    url = "http://www.jwz.org/xscreensaver/${name}.tar.gz";
+    url = "https://www.jwz.org/xscreensaver/${name}.tar.gz";
     sha256 = "1ng5ddzb4k2h1w54pvk9hzxvnxxmc54bc4a2ibk974nzjjjaxivs";
   };
 
@@ -47,12 +47,12 @@ stdenv.mkDerivation rec {
   ;
 
   meta = {
-    homepage = http://www.jwz.org/xscreensaver/;
+    homepage = https://www.jwz.org/xscreensaver/;
     description = "A set of screensavers";
     maintainers = with stdenv.lib.maintainers; [ raskin ];
     platforms = with stdenv.lib.platforms; allBut cygwin;
     inherit version;
-    downloadPage = "http://www.jwz.org/xscreensaver/download.html";
+    downloadPage = "https://www.jwz.org/xscreensaver/download.html";
     updateWalker = true;
   };
 }
diff --git a/pkgs/misc/vim-plugins/default.nix b/pkgs/misc/vim-plugins/default.nix
index 05bcf62beec6..d50667e80e63 100644
--- a/pkgs/misc/vim-plugins/default.nix
+++ b/pkgs/misc/vim-plugins/default.nix
@@ -1786,7 +1786,7 @@ rec {
 
     meta = {
       description = "Fastest non utf-8 aware word and C completion engine for Vim";
-      homepage = http://github.com/Valloric/YouCompleteMe;
+      homepage = https://github.com/Valloric/YouCompleteMe;
       license = stdenv.lib.licenses.gpl3;
       maintainers = with stdenv.lib.maintainers; [marcweber jagajaga];
       platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/os-specific/linux/netatop/default.nix b/pkgs/os-specific/linux/netatop/default.nix
index 0498f5cf37e2..8dbacc46154f 100644
--- a/pkgs/os-specific/linux/netatop/default.nix
+++ b/pkgs/os-specific/linux/netatop/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation {
 
   meta = {
     description = "Network monitoring module for atop";
-    homepage = http://www.atoptool.nl/downloadnetatop.php;
+    homepage = https://www.atoptool.nl/downloadnetatop.php;
     license = stdenv.lib.licenses.gpl2;
     platforms = stdenv.lib.platforms.linux;
     maintainers = with stdenv.lib.maintainers; [viric];
diff --git a/pkgs/os-specific/linux/pam_krb5/default.nix b/pkgs/os-specific/linux/pam_krb5/default.nix
index 40e7e1216a64..abbf3398ceda 100644
--- a/pkgs/os-specific/linux/pam_krb5/default.nix
+++ b/pkgs/os-specific/linux/pam_krb5/default.nix
@@ -11,7 +11,7 @@ stdenv.mkDerivation rec {
   buildInputs = [ pam kerberos ];
 
   meta = with stdenv.lib; {
-    homepage = http://www.eyrie.org/~eagle/software/pam-krb5/;
+    homepage = https://www.eyrie.org/~eagle/software/pam-krb5/;
     description = "PAM module allowing PAM-aware applications to authenticate users by performing an AS exchange with a Kerberos KDC";
     longDescription = ''
       pam_krb5 can optionally convert Kerberos 5 credentials to Kerberos IV
diff --git a/pkgs/os-specific/linux/sinit/default.nix b/pkgs/os-specific/linux/sinit/default.nix
index 9207a6b3511d..46abb6ccc662 100644
--- a/pkgs/os-specific/linux/sinit/default.nix
+++ b/pkgs/os-specific/linux/sinit/default.nix
@@ -31,7 +31,7 @@ stdenv.mkDerivation {
     license = stdenv.lib.licenses.mit ;
     maintainers = [stdenv.lib.maintainers.raskin];
     platforms = stdenv.lib.platforms.linux;
-    homepage = http://tools.suckless.org/sinit;
+    homepage = https://tools.suckless.org/sinit;
     downloadPage = "http://git.suckless.org/sinit";
   };
 }
diff --git a/pkgs/os-specific/linux/upower/default.nix b/pkgs/os-specific/linux/upower/default.nix
index 490df3e1abe2..b1a8ac7d5182 100644
--- a/pkgs/os-specific/linux/upower/default.nix
+++ b/pkgs/os-specific/linux/upower/default.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation rec {
   name = "upower-0.99.4";
 
   src = fetchurl {
-    url = "http://upower.freedesktop.org/releases/${name}.tar.xz";
+    url = "https://upower.freedesktop.org/releases/${name}.tar.xz";
     sha256 = "1c1ph1j1fnrf3vipxb7ncmdfc36dpvcvpsv8n8lmal7grjk2b8ww";
   };
 
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
   installFlags = "historydir=$(TMPDIR)/foo";
 
   meta = {
-    homepage = http://upower.freedesktop.org/;
+    homepage = https://upower.freedesktop.org/;
     description = "A D-Bus service for power management";
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/os-specific/linux/xf86-video-nested/default.nix b/pkgs/os-specific/linux/xf86-video-nested/default.nix
index 8d3e490db87c..54d164737705 100644
--- a/pkgs/os-specific/linux/xf86-video-nested/default.nix
+++ b/pkgs/os-specific/linux/xf86-video-nested/default.nix
@@ -21,7 +21,7 @@ stdenv.mkDerivation {
   CFLAGS = "-I${pixman}/include/pixman-1";
 
   meta = {
-    homepage = http://cgit.freedesktop.org/xorg/driver/xf86-video-nested;
+    homepage = https://cgit.freedesktop.org/xorg/driver/xf86-video-nested;
     description = "A driver to run Xorg on top of Xorg or something else";
     maintainers = [ stdenv.lib.maintainers.goibhniu ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/servers/dns/pdns-recursor/default.nix b/pkgs/servers/dns/pdns-recursor/default.nix
index 1750a574af7d..ae023649bc3d 100644
--- a/pkgs/servers/dns/pdns-recursor/default.nix
+++ b/pkgs/servers/dns/pdns-recursor/default.nix
@@ -33,7 +33,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A recursive DNS server";
-    homepage = http://www.powerdns.com/;
+    homepage = https://www.powerdns.com/;
     platforms = platforms.linux;
     license = licenses.gpl2;
     maintainers = with maintainers; [ rnhmjoj ];
diff --git a/pkgs/servers/monitoring/nagios/default.nix b/pkgs/servers/monitoring/nagios/default.nix
index 5d7becb16525..b0e2f29a3b48 100644
--- a/pkgs/servers/monitoring/nagios/default.nix
+++ b/pkgs/servers/monitoring/nagios/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A host, service and network monitoring program";
-    homepage    = http://www.nagios.org/;
+    homepage    = https://www.nagios.org/;
     license     = stdenv.lib.licenses.gpl2;
     platforms   = stdenv.lib.platforms.linux;
     maintainers = with stdenv.lib.maintainers; [ thoughtpolice relrod ];
diff --git a/pkgs/servers/monitoring/sensu/default.nix b/pkgs/servers/monitoring/sensu/default.nix
index c0a2c3ca49e5..dba0c32b353b 100644
--- a/pkgs/servers/monitoring/sensu/default.nix
+++ b/pkgs/servers/monitoring/sensu/default.nix
@@ -9,7 +9,7 @@ bundlerEnv rec {
 
   meta = with lib; {
     description = "A monitoring framework that aims to be simple, malleable, and scalable";
-    homepage    = http://sensuapp.org/;
+    homepage    = https://sensuapp.org/;
     license     = licenses.mit;
     maintainers = with maintainers; [ theuni peterhoeg ];
     platforms   = platforms.unix;
diff --git a/pkgs/servers/monitoring/zabbix/default.nix b/pkgs/servers/monitoring/zabbix/default.nix
index cd541f82d238..be52698ed839 100644
--- a/pkgs/servers/monitoring/zabbix/default.nix
+++ b/pkgs/servers/monitoring/zabbix/default.nix
@@ -44,7 +44,7 @@ in
 
     meta = {
       description = "An enterprise-class open source distributed monitoring solution";
-      homepage = http://www.zabbix.com/;
+      homepage = https://www.zabbix.com/;
       license = "GPL";
       maintainers = [ stdenv.lib.maintainers.eelco ];
       platforms = stdenv.lib.platforms.linux;
@@ -60,7 +60,7 @@ in
 
     meta = with stdenv.lib; {
       description = "An enterprise-class open source distributed monitoring solution (client-side agent)";
-      homepage = http://www.zabbix.com/;
+      homepage = https://www.zabbix.com/;
       license = licenses.gpl2;
       maintainers = [ maintainers.eelco ];
       platforms = platforms.linux;
diff --git a/pkgs/servers/sql/mysql/5.5.x.nix b/pkgs/servers/sql/mysql/5.5.x.nix
index 8f6ccd8c0d5b..5a747fb85abd 100644
--- a/pkgs/servers/sql/mysql/5.5.x.nix
+++ b/pkgs/servers/sql/mysql/5.5.x.nix
@@ -68,7 +68,7 @@ self = stdenv.mkDerivation rec {
   };
 
   meta = {
-    homepage = http://www.mysql.com/;
+    homepage = https://www.mysql.com/;
     description = "The world's most popular open source database";
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/shells/nix-bash-completions/default.nix b/pkgs/shells/nix-bash-completions/default.nix
index f9cd97e97354..fb27cf5ea9f4 100644
--- a/pkgs/shells/nix-bash-completions/default.nix
+++ b/pkgs/shells/nix-bash-completions/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://github.com/hedning/nix-bash-completions;
+    homepage = https://github.com/hedning/nix-bash-completions;
     description = "Bash completions for Nix, NixOS, and NixOps";
     license = licenses.bsd3;
     platforms = platforms.all;
diff --git a/pkgs/tools/X11/sselp/default.nix b/pkgs/tools/X11/sselp/default.nix
index 33a0deedafac..10b0dfff9bf8 100644
--- a/pkgs/tools/X11/sselp/default.nix
+++ b/pkgs/tools/X11/sselp/default.nix
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = http://tools.suckless.org/sselp;
+    homepage = https://tools.suckless.org/sselp;
     description = "Prints the X selection to stdout, useful in scripts";
     license = stdenv.lib.licenses.mit;
     maintainers = [stdenv.lib.maintainers.magnetophon ];
diff --git a/pkgs/tools/X11/xdg-utils/default.nix b/pkgs/tools/X11/xdg-utils/default.nix
index 717ad327c676..f71bcdef9f4f 100644
--- a/pkgs/tools/X11/xdg-utils/default.nix
+++ b/pkgs/tools/X11/xdg-utils/default.nix
@@ -53,7 +53,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://portland.freedesktop.org/wiki/;
+    homepage = https://portland.freedesktop.org/wiki/;
     description = "A set of command line tools that assist applications with a variety of desktop integration tasks";
     license = if mimiSupport then licenses.gpl2 else licenses.free;
     maintainers = [ maintainers.eelco ];
diff --git a/pkgs/tools/archivers/cromfs/default.nix b/pkgs/tools/archivers/cromfs/default.nix
index 00de2c2ec462..77536a7ad30e 100644
--- a/pkgs/tools/archivers/cromfs/default.nix
+++ b/pkgs/tools/archivers/cromfs/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "FUSE Compressed ROM filesystem with lzma";
-    homepage = http://bisqwit.iki.fi/source/cromfs.html;
+    homepage = https://bisqwit.iki.fi/source/cromfs.html;
     maintainers = [ stdenv.lib.maintainers.viric ];
     platforms = stdenv.lib.platforms.linux;
   };
diff --git a/pkgs/tools/compression/xz/default.nix b/pkgs/tools/compression/xz/default.nix
index 48c58434acd8..05cc672ab15e 100644
--- a/pkgs/tools/compression/xz/default.nix
+++ b/pkgs/tools/compression/xz/default.nix
@@ -4,7 +4,7 @@ stdenv.mkDerivation rec {
   name = "xz-5.2.3";
 
   src = fetchurl {
-    url = "http://tukaani.org/xz/${name}.tar.bz2";
+    url = "https://tukaani.org/xz/${name}.tar.bz2";
     sha256 = "1ha08wxcldgcl81021x5nhknr47s1p95ljfkka4sqah5w5ns377x";
   };
 
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
   postInstall = "rm -rf $out/share/doc";
 
   meta = with stdenv.lib; {
-    homepage = http://tukaani.org/xz/;
+    homepage = https://tukaani.org/xz/;
     description = "XZ, general-purpose data compression software, successor of LZMA";
 
     longDescription =
diff --git a/pkgs/tools/filesystems/mp3fs/default.nix b/pkgs/tools/filesystems/mp3fs/default.nix
index 77207cb8b3a1..3a0e8e2fd467 100644
--- a/pkgs/tools/filesystems/mp3fs/default.nix
+++ b/pkgs/tools/filesystems/mp3fs/default.nix
@@ -25,7 +25,7 @@ stdenv.mkDerivation rec {
       which only understands the MP3 format, or transcode files through
       simple drag-and-drop in a file browser.
     '';
-    homepage = http://khenriks.github.io/mp3fs/;
+    homepage = https://khenriks.github.io/mp3fs/;
     license = licenses.gpl3Plus;
     platforms = platforms.linux;
     maintainers = with maintainers; [ nckx ];
diff --git a/pkgs/tools/filesystems/ntfs-3g/default.nix b/pkgs/tools/filesystems/ntfs-3g/default.nix
index 0cf439c9fe95..6acf5e221d47 100644
--- a/pkgs/tools/filesystems/ntfs-3g/default.nix
+++ b/pkgs/tools/filesystems/ntfs-3g/default.nix
@@ -45,7 +45,7 @@ stdenv.mkDerivation rec {
     '';
 
   meta = with stdenv.lib; {
-    homepage = http://www.tuxera.com/community/open-source-ntfs-3g/;
+    homepage = https://www.tuxera.com/community/open-source-ntfs-3g/;
     description = "FUSE-based NTFS driver with full write support";
     maintainers = with maintainers; [ dezgeg ];
     platforms = platforms.linux;
diff --git a/pkgs/tools/graphics/wkhtmltopdf/default.nix b/pkgs/tools/graphics/wkhtmltopdf/default.nix
index b513115c68fe..3ecd91aaca14 100644
--- a/pkgs/tools/graphics/wkhtmltopdf/default.nix
+++ b/pkgs/tools/graphics/wkhtmltopdf/default.nix
@@ -129,7 +129,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = http://wkhtmltopdf.org/;
+    homepage = https://wkhtmltopdf.org/;
     description = "Tools for rendering web pages to PDF or images";
     longDescription = ''
       wkhtmltopdf and wkhtmltoimage are open source (LGPL) command line tools
diff --git a/pkgs/tools/misc/keychain/default.nix b/pkgs/tools/misc/keychain/default.nix
index f5b1b950c131..b8b7666934b8 100644
--- a/pkgs/tools/misc/keychain/default.nix
+++ b/pkgs/tools/misc/keychain/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "Keychain management tool";
-    homepage = http://www.funtoo.org/Keychain;
+    homepage = https://www.funtoo.org/Keychain;
     license = stdenv.lib.licenses.gpl2;
     # other platforms are untested (AFAIK)
     platforms =
diff --git a/pkgs/tools/misc/mrtg/default.nix b/pkgs/tools/misc/mrtg/default.nix
index 5a4278888575..7657b072aa89 100644
--- a/pkgs/tools/misc/mrtg/default.nix
+++ b/pkgs/tools/misc/mrtg/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation rec {
   name = "mrtg-${version}";
 
   src = fetchurl {
-    url = "http://oss.oetiker.ch/mrtg/pub/${name}.tar.gz";
+    url = "https://oss.oetiker.ch/mrtg/pub/${name}.tar.gz";
     sha256 = "0r93ipscfp7py0b1dcx65s58q7dlwndqhprf8w4945a0h2p7zyjy";
   };
 
@@ -16,7 +16,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "The Multi Router Traffic Grapher";
-    homepage = http://oss.oetiker.ch/mrtg/;
+    homepage = https://oss.oetiker.ch/mrtg/;
     license = stdenv.lib.licenses.gpl2;
     maintainers = [ stdenv.lib.maintainers.robberer ];
     platforms = stdenv.lib.platforms.unix;
diff --git a/pkgs/tools/misc/testdisk/default.nix b/pkgs/tools/misc/testdisk/default.nix
index 312c0ae6db5a..b428205fcd05 100644
--- a/pkgs/tools/misc/testdisk/default.nix
+++ b/pkgs/tools/misc/testdisk/default.nix
@@ -14,7 +14,7 @@ stdenv.mkDerivation {
   enableParallelBuilding = true;
 
   meta = {
-    homepage = http://www.cgsecurity.org/wiki/TestDisk;
+    homepage = https://www.cgsecurity.org/wiki/TestDisk;
     license = stdenv.lib.licenses.gpl2Plus;
     platforms = stdenv.lib.platforms.all;
     maintainers = [ stdenv.lib.maintainers.eelco ];
diff --git a/pkgs/tools/misc/tmate/default.nix b/pkgs/tools/misc/tmate/default.nix
index a528f5f394fa..de6c16123960 100644
--- a/pkgs/tools/misc/tmate/default.nix
+++ b/pkgs/tools/misc/tmate/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage    = http://tmate.io/;
+    homepage    = https://tmate.io/;
     description = "Instant Terminal Sharing";
     license     = licenses.mit;
     platforms   = platforms.unix;
diff --git a/pkgs/tools/misc/vmtouch/default.nix b/pkgs/tools/misc/vmtouch/default.nix
index 9fea1b85f6ac..820c5a65c740 100644
--- a/pkgs/tools/misc/vmtouch/default.nix
+++ b/pkgs/tools/misc/vmtouch/default.nix
@@ -19,7 +19,7 @@ stdenv.mkDerivation rec {
   meta = {
     description = "Portable file system cache diagnostics and control";
     longDescription = "vmtouch is a tool for learning about and controlling the file system cache of unix and unix-like systems.";
-    homepage = http://hoytech.com/vmtouch/;
+    homepage = https://hoytech.com/vmtouch/;
     license = stdenv.lib.licenses.bsd3;
     maintainers = [ stdenv.lib.maintainers.garrison ];
     platforms = stdenv.lib.platforms.all;
diff --git a/pkgs/tools/networking/megatools/default.nix b/pkgs/tools/networking/megatools/default.nix
index 7c7c63ef230c..a59aee83b939 100644
--- a/pkgs/tools/networking/megatools/default.nix
+++ b/pkgs/tools/networking/megatools/default.nix
@@ -6,7 +6,7 @@ stdenv.mkDerivation rec {
   version = "1.9.98";
 
   src = fetchurl {
-    url = "http://megatools.megous.com/builds/${name}.tar.gz";
+    url = "https://megatools.megous.com/builds/${name}.tar.gz";
     sha256 = "0vx1farp0dpg4zwvxdbfdnzjk9qx3sn109p1r1zl3g3xsaj221cv";
   };
 
@@ -15,7 +15,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Command line client for Mega.co.nz";
-    homepage = http://megatools.megous.com/;
+    homepage = https://megatools.megous.com/;
     license = licenses.gpl2Plus;
     maintainers = [ maintainers.viric maintainers.AndersonTorres ];
     platforms = platforms.linux;
diff --git a/pkgs/tools/networking/miredo/default.nix b/pkgs/tools/networking/miredo/default.nix
index efe2847ae355..a1a2b79b86a4 100644
--- a/pkgs/tools/networking/miredo/default.nix
+++ b/pkgs/tools/networking/miredo/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Teredo IPv6 Tunneling Daemon";
-    homepage = http://www.remlab.net/miredo/;
+    homepage = https://www.remlab.net/miredo/;
     license = licenses.gpl2;
     maintainers = [ maintainers.volth ];
     platforms = platforms.unix;
diff --git a/pkgs/tools/networking/mitmproxy/default.nix b/pkgs/tools/networking/mitmproxy/default.nix
index 36874a812812..131021704a22 100644
--- a/pkgs/tools/networking/mitmproxy/default.nix
+++ b/pkgs/tools/networking/mitmproxy/default.nix
@@ -53,7 +53,7 @@ buildPythonPackage rec {
 
   meta = with stdenv.lib; {
     description = "Man-in-the-middle proxy";
-    homepage = http://mitmproxy.org/;
+    homepage = https://mitmproxy.org/;
     license = licenses.mit;
     maintainers = with maintainers; [ fpletz kamilchm ];
   };
diff --git a/pkgs/tools/networking/netrw/default.nix b/pkgs/tools/networking/netrw/default.nix
index e19b8ba7f649..bd5190767d1f 100644
--- a/pkgs/tools/networking/netrw/default.nix
+++ b/pkgs/tools/networking/netrw/default.nix
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
   meta = {
     description = "Simple tool for transporting data over the network";
     license = stdenv.lib.licenses.gpl2;
-    homepage = http://mamuti.net/netrw/index.en.html;
+    homepage = https://mamuti.net/netrw/index.en.html;
     platforms = stdenv.lib.platforms.unix;
   };
 }
diff --git a/pkgs/tools/networking/nss-pam-ldapd/default.nix b/pkgs/tools/networking/nss-pam-ldapd/default.nix
index 93646d58cd30..e5fde0f80385 100644
--- a/pkgs/tools/networking/nss-pam-ldapd/default.nix
+++ b/pkgs/tools/networking/nss-pam-ldapd/default.nix
@@ -5,7 +5,7 @@ stdenv.mkDerivation rec {
   version = "0.9.7";
   
   src = fetchurl {
-    url = "http://arthurdejong.org/nss-pam-ldapd/${name}.tar.gz";
+    url = "https://arthurdejong.org/nss-pam-ldapd/${name}.tar.gz";
     sha256 = "1sw36w6zkzvabvjckqick032j5p5xi0qi3sgnh0znzxz31jqvf0d";
   };
   
@@ -29,7 +29,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "LDAP identity and authentication for NSS/PAM";
-    homepage = http://arthurdejong.org/nss-pam-ldapd/;
+    homepage = https://arthurdejong.org/nss-pam-ldapd/;
     license = licenses.lgpl21;
     platforms = platforms.linux;
   };
diff --git a/pkgs/tools/networking/openresolv/default.nix b/pkgs/tools/networking/openresolv/default.nix
index f22ad32aaa4e..209e1f64c72b 100644
--- a/pkgs/tools/networking/openresolv/default.nix
+++ b/pkgs/tools/networking/openresolv/default.nix
@@ -32,7 +32,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "A program to manage /etc/resolv.conf";
-    homepage = http://roy.marples.name/projects/openresolv;
+    homepage = https://roy.marples.name/projects/openresolv;
     license = stdenv.lib.licenses.bsd2;
     maintainers = [ stdenv.lib.maintainers.eelco ];
     platforms = stdenv.lib.platforms.linux;
diff --git a/pkgs/tools/networking/stun/default.nix b/pkgs/tools/networking/stun/default.nix
index 8f9636041fff..7ba4a0d89362 100644
--- a/pkgs/tools/networking/stun/default.nix
+++ b/pkgs/tools/networking/stun/default.nix
@@ -34,7 +34,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "Stun server and test client";
-    homepage    = http://sourceforge.net/projects/stun/;
+    homepage    = https://sourceforge.net/projects/stun/;
     license     = licenses.vsl10;
     maintainers = with maintainers; [ marcweber obadz ];
     platforms   = platforms.linux;
diff --git a/pkgs/tools/networking/swec/default.nix b/pkgs/tools/networking/swec/default.nix
index 5b7f8f114df3..4af7e1eb5bab 100644
--- a/pkgs/tools/networking/swec/default.nix
+++ b/pkgs/tools/networking/swec/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
   checkPhase = "make test";
 
   meta = {
-    homepage = http://random.zerodogg.org/swec/;
+    homepage = https://random.zerodogg.org/swec/;
 
     description = "Simple Web Error Checker (SWEC)";
 
diff --git a/pkgs/tools/networking/trickle/default.nix b/pkgs/tools/networking/trickle/default.nix
index 1c8829a07b27..52bb418fc0d0 100644
--- a/pkgs/tools/networking/trickle/default.nix
+++ b/pkgs/tools/networking/trickle/default.nix
@@ -27,7 +27,7 @@ stdenv.mkDerivation rec {
   meta = {
     description = "Lightweight userspace bandwidth shaper";
     license = stdenv.lib.licenses.bsd3;
-    homepage = http://monkey.org/~marius/pages/?page=trickle;
+    homepage = https://monkey.org/~marius/pages/?page=trickle;
     platforms = stdenv.lib.platforms.linux;
   };
 }
diff --git a/pkgs/tools/networking/vpnc/default.nix b/pkgs/tools/networking/vpnc/default.nix
index 496c01c02fc5..86e483114a39 100644
--- a/pkgs/tools/networking/vpnc/default.nix
+++ b/pkgs/tools/networking/vpnc/default.nix
@@ -48,7 +48,7 @@ stdenv.mkDerivation rec {
   '';
 
   meta = {
-    homepage = http://www.unix-ag.uni-kl.de/~massar/vpnc/;
+    homepage = https://www.unix-ag.uni-kl.de/~massar/vpnc/;
     description = "Virtual private network (VPN) client for Cisco's VPN concentrators";
     license = stdenv.lib.licenses.gpl2Plus;
 
diff --git a/pkgs/tools/security/fpm2/default.nix b/pkgs/tools/security/fpm2/default.nix
index 69b4b36fb9b3..66a50e268a53 100644
--- a/pkgs/tools/security/fpm2/default.nix
+++ b/pkgs/tools/security/fpm2/default.nix
@@ -9,7 +9,7 @@ stdenv.mkDerivation rec {
   version = "0.79";
 
   src = fetchurl {
-    url = "http://als.regnet.cz/fpm2/download/fpm2-${version}.tar.bz2";
+    url = "https://als.regnet.cz/fpm2/download/fpm2-${version}.tar.bz2";
     sha256 = "d55e9ce6be38a44fc1053d82db2d117cf3991a51898bd86d7913bae769f04da7";
   };
 
@@ -18,7 +18,7 @@ stdenv.mkDerivation rec {
 
   meta = {
     description = "FPM2 is GTK2 port from Figaro's Password Manager originally developed by John Conneely, with some new enhancements.";
-    homepage    = http://als.regnet.cz/fpm2/;
+    homepage    = https://als.regnet.cz/fpm2/;
     license     = licenses.gpl2;
     platforms   = platforms.linux;
     maintainers = with maintainers; [ hce ];
diff --git a/pkgs/tools/security/mkpasswd/default.nix b/pkgs/tools/security/mkpasswd/default.nix
index 88aa71810dcf..b8da305c36d1 100644
--- a/pkgs/tools/security/mkpasswd/default.nix
+++ b/pkgs/tools/security/mkpasswd/default.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation {
   installPhase = "make install-mkpasswd";
 
   meta = with stdenv.lib; {
-    homepage = http://packages.qa.debian.org/w/whois.html;
+    homepage = https://packages.qa.debian.org/w/whois.html;
     description = "Overfeatured front-end to crypt, from the Debian whois package";
     license = licenses.gpl2;
     maintainers = with maintainers; [ cstrahan fpletz ];
diff --git a/pkgs/tools/security/polkit-gnome/default.nix b/pkgs/tools/security/polkit-gnome/default.nix
index e8709130015f..bfb3fb63b141 100644
--- a/pkgs/tools/security/polkit-gnome/default.nix
+++ b/pkgs/tools/security/polkit-gnome/default.nix
@@ -23,7 +23,7 @@ in stdenv.mkDerivation rec {
     '';
 
   meta = {
-    homepage = http://hal.freedesktop.org/docs/PolicyKit/;
+    homepage = https://hal.freedesktop.org/docs/PolicyKit/;
     description = "A dbus session bus service that is used to bring up authentication dialogs";
     license = stdenv.lib.licenses.gpl2;
     maintainers = with stdenv.lib.maintainers; [ phreedom ];
diff --git a/pkgs/tools/security/sudo/default.nix b/pkgs/tools/security/sudo/default.nix
index 26311cce73ce..1238a9207603 100644
--- a/pkgs/tools/security/sudo/default.nix
+++ b/pkgs/tools/security/sudo/default.nix
@@ -70,9 +70,9 @@ stdenv.mkDerivation rec {
       providing an audit trail of the commands and their arguments.
       '';
 
-    homepage = http://www.sudo.ws/;
+    homepage = https://www.sudo.ws/;
 
-    license = http://www.sudo.ws/sudo/license.html;
+    license = https://www.sudo.ws/sudo/license.html;
 
     maintainers = [ stdenv.lib.maintainers.eelco ];
 
diff --git a/pkgs/tools/security/tboot/default.nix b/pkgs/tools/security/tboot/default.nix
index 534ff3fd0fff..a07a374c5d87 100644
--- a/pkgs/tools/security/tboot/default.nix
+++ b/pkgs/tools/security/tboot/default.nix
@@ -28,7 +28,7 @@ stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "A pre-kernel/VMM module that uses Intel(R) TXT to perform a measured and verified launch of an OS kernel/VMM";
-    homepage    = http://sourceforge.net/projects/tboot/;
+    homepage    = https://sourceforge.net/projects/tboot/;
     license     = licenses.bsd3;
     maintainers = with maintainers; [ ak ];
     platforms   = [ "x86_64-linux" "i686-linux" ];
diff --git a/pkgs/tools/security/tpm-tools/default.nix b/pkgs/tools/security/tpm-tools/default.nix
index 8c68787db25f..1944cf236e1e 100644
--- a/pkgs/tools/security/tpm-tools/default.nix
+++ b/pkgs/tools/security/tpm-tools/default.nix
@@ -23,7 +23,7 @@ stdenv.mkDerivation rec {
       application enablement of Trusted Computing using a Trusted Platform
       Module (TPM), similar to a smart card environment.
     '';
-    homepage    = http://sourceforge.net/projects/trousers/files/tpm-tools/;
+    homepage    = https://sourceforge.net/projects/trousers/files/tpm-tools/;
     license     = licenses.cpl10;
     maintainers = [ maintainers.ak ];
     platforms   = platforms.unix;
diff --git a/pkgs/tools/system/ctop/default.nix b/pkgs/tools/system/ctop/default.nix
index 5ff4e7220ab3..533f0ab11e40 100644
--- a/pkgs/tools/system/ctop/default.nix
+++ b/pkgs/tools/system/ctop/default.nix
@@ -18,7 +18,7 @@ buildGoPackage rec {
 
   meta = with stdenv.lib; {
     description = "Concise commandline monitoring for containers";
-    homepage = http://ctop.sh/;
+    homepage = https://ctop.sh/;
     license = licenses.mit;
     maintainers = with maintainers; [ apeyroux ];
   };
diff --git a/pkgs/tools/system/lshw/default.nix b/pkgs/tools/system/lshw/default.nix
index 499f7c461546..f6e09b6816f6 100644
--- a/pkgs/tools/system/lshw/default.nix
+++ b/pkgs/tools/system/lshw/default.nix
@@ -38,7 +38,7 @@ stdenv.mkDerivation rec {
   enableParallelBuilding = true;
 
   meta = with stdenv.lib; {
-    homepage = http://ezix.org/project/wiki/HardwareLiSter;
+    homepage = https://ezix.org/project/wiki/HardwareLiSter;
     description = "Provide detailed information on the hardware configuration of the machine";
     license = licenses.gpl2;
     maintainers = with maintainers; [ phreedom jgeerds ];
diff --git a/pkgs/tools/text/replace/default.nix b/pkgs/tools/text/replace/default.nix
index 18ef074c8a52..2719a4c81915 100644
--- a/pkgs/tools/text/replace/default.nix
+++ b/pkgs/tools/text/replace/default.nix
@@ -20,7 +20,7 @@ stdenv.mkDerivation {
   patches = [./malloc.patch];
 
   meta = {
-    homepage = http://replace.richardlloyd.org.uk/;
+    homepage = https://replace.richardlloyd.org.uk/;
     description = "A tool to replace verbatim strings";
     platforms = stdenv.lib.platforms.unix;
   };
diff --git a/pkgs/tools/text/txt2tags/default.nix b/pkgs/tools/text/txt2tags/default.nix
index 6aad3c7b23da..592f9b8f1885 100644
--- a/pkgs/tools/text/txt2tags/default.nix
+++ b/pkgs/tools/text/txt2tags/default.nix
@@ -26,7 +26,7 @@ stdenv.mkDerivation rec {
   };
 
   meta = {
-    homepage = http://txt2tags.org/;
+    homepage = https://txt2tags.org/;
     description = "A KISS markup language";
     license  = stdenv.lib.licenses.gpl2;
     maintainers = with stdenv.lib.maintainers; [ kovirobi ];
diff --git a/pkgs/tools/typesetting/pdf2odt/default.nix b/pkgs/tools/typesetting/pdf2odt/default.nix
index 902cf9a5f836..3e40c9caf28e 100644
--- a/pkgs/tools/typesetting/pdf2odt/default.nix
+++ b/pkgs/tools/typesetting/pdf2odt/default.nix
@@ -40,7 +40,7 @@ in stdenv.mkDerivation rec {
 
   meta = with stdenv.lib; {
     description = "PDF to ODT format converter";
-    homepage    = http://github.com/gutschke/pdf2odt;
+    homepage    = https://github.com/gutschke/pdf2odt;
     license     = licenses.mit;
     platforms   = platforms.all;
     maintainers = with maintainers; [ peterhoeg ];
diff --git a/pkgs/tools/virtualization/awsebcli/default.nix b/pkgs/tools/virtualization/awsebcli/default.nix
index 72e3cb0ed2d3..25752afd995b 100644
--- a/pkgs/tools/virtualization/awsebcli/default.nix
+++ b/pkgs/tools/virtualization/awsebcli/default.nix
@@ -101,7 +101,7 @@ in with localPython.pkgs; buildPythonApplication rec {
   '';
 
   meta = with stdenv.lib; {
-    homepage = http://aws.amazon.com/elasticbeanstalk/;
+    homepage = https://aws.amazon.com/elasticbeanstalk/;
     description = "A command line interface for Elastic Beanstalk.";
     maintainers = with maintainers; [ eqyiel ];
     license = licenses.asl20;
diff --git a/pkgs/top-level/dotnet-packages.nix b/pkgs/top-level/dotnet-packages.nix
index b082bce11b72..1a37d58c70d1 100644
--- a/pkgs/top-level/dotnet-packages.nix
+++ b/pkgs/top-level/dotnet-packages.nix
@@ -715,7 +715,7 @@ let self = dotnetPackages // overrides; dotnetPackages = with self; {
 
     meta = {
       description = "Math.NET Numerics is an opensource numerical library for .Net, Silverlight and Mono";
-      homepage = http://numerics.mathdotnet.com/;
+      homepage = https://numerics.mathdotnet.com/;
       license = stdenv.lib.licenses.mit;
       maintainers = with stdenv.lib.maintainers; [ obadz ];
       platforms = with stdenv.lib.platforms; linux;
@@ -872,7 +872,7 @@ let self = dotnetPackages // overrides; dotnetPackages = with self; {
 
     meta = {
       description = "Popular high-performance JSON framework for .NET";
-      homepage = "http://www.newtonsoft.com/json";
+      homepage = "https://www.newtonsoft.com/json";
       license = stdenv.lib.licenses.mit;
       maintainers = with stdenv.lib.maintainers; [ obadz ];
       platforms = with stdenv.lib.platforms; linux;