diff --git a/pkgs/desktops/mate/atril/default.nix b/pkgs/desktops/mate/atril/default.nix
index ab00cdce6714..c6607dad2902 100644
--- a/pkgs/desktops/mate/atril/default.nix
+++ b/pkgs/desktops/mate/atril/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl, pkgconfig, intltool, gtk3, libxml2, libsecret, poppler, itstool, caja, mate-desktop, hicolor_icon_theme, wrapGAppsHook }:
+{ stdenv, fetchurl, pkgconfig, intltool, gtk3, libxml2, libsecret, poppler, itstool, hicolor_icon_theme, mate, wrapGAppsHook }:
 
 stdenv.mkDerivation rec {
   name = "atril-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.19";
-  minor-ver = "0";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "0v829yvr738y5s2knyvimcgqv351qzb0rpw5il19qc27rbzyri1r";
+    url = "https://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "1639jxcdhcn5wvb4gj9xncdj5d5c3rnyydwwsgqj66cmfmb53l1n";
   };
 
   nativeBuildInputs = [
@@ -23,8 +21,8 @@ stdenv.mkDerivation rec {
     libsecret
     libxml2
     poppler
-    caja
-    mate-desktop
+    mate.caja
+    mate.mate-desktop
     hicolor_icon_theme
   ];
   
diff --git a/pkgs/desktops/mate/caja-dropbox/default.nix b/pkgs/desktops/mate/caja-dropbox/default.nix
index da5200eb3b32..f84fe2fef2eb 100644
--- a/pkgs/desktops/mate/caja-dropbox/default.nix
+++ b/pkgs/desktops/mate/caja-dropbox/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl, pkgconfig, gtk3, caja, pythonPackages }:
+{ stdenv, fetchurl, pkgconfig, gtk3, mate, pythonPackages }:
 
 stdenv.mkDerivation rec {
   name = "caja-dropbox-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "0";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "18wd8abjaxa68n1yjmvh9az1m8lqa2wing73xdymz0d5gmxmk25g";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "0xjqcfi5n6hsfyw77blplkn30as0slkfzngxid1n6z7jz5yjq7vj";
   };
 
   nativeBuildInputs = [
@@ -17,7 +15,7 @@ stdenv.mkDerivation rec {
 
   buildInputs = [
     gtk3
-    caja
+    mate.caja
     pythonPackages.python
     pythonPackages.pygtk
     pythonPackages.docutils
diff --git a/pkgs/desktops/mate/caja-extensions/default.nix b/pkgs/desktops/mate/caja-extensions/default.nix
index 9bd86d962ecb..1aef8d3d184f 100644
--- a/pkgs/desktops/mate/caja-extensions/default.nix
+++ b/pkgs/desktops/mate/caja-extensions/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl, pkgconfig, intltool, gtk3, dbus_glib, gupnp, caja, mate-desktop, imagemagick, wrapGAppsHook }:
+{ stdenv, fetchurl, pkgconfig, intltool, gtk3, dbus_glib, gupnp, mate, imagemagick, wrapGAppsHook }:
 
 stdenv.mkDerivation rec {
   name = "caja-extensions-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "2";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "065j3dyk7zp35rfvxxsdglx30i3xrma4d4saf7mn1rn1akdfgaba";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "1abi7s31mx7v8x0f747bmb3s8hrv8fv007pflv2n545yvn0m1dpj";
   };
 
   nativeBuildInputs = [
@@ -21,8 +19,8 @@ stdenv.mkDerivation rec {
     gtk3
     dbus_glib
     gupnp
-    caja
-    mate-desktop
+    mate.caja
+    mate.mate-desktop
     imagemagick
   ];
 
diff --git a/pkgs/desktops/mate/caja/default.nix b/pkgs/desktops/mate/caja/default.nix
index 3c872e72091f..a80f89feff29 100644
--- a/pkgs/desktops/mate/caja/default.nix
+++ b/pkgs/desktops/mate/caja/default.nix
@@ -2,13 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "caja-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "5";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "1ild2bslvnvxvl5q2xc1sa8bz1lyr4q4ksw3bwxrj0ymc16h7p50";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "05shyqqapqbz4w0gbhx0i3kj6xg7rcj80hkaq7wf5pyj91wmkxqg";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/desktops/mate/default.nix b/pkgs/desktops/mate/default.nix
index 0c495fd190e5..7441a8f73ae7 100644
--- a/pkgs/desktops/mate/default.nix
+++ b/pkgs/desktops/mate/default.nix
@@ -5,6 +5,9 @@ let
 
   self = rec {
 
+    getRelease = version:
+      pkgs.stdenv.lib.concatStringsSep "." (pkgs.stdenv.lib.take 2 (pkgs.stdenv.lib.splitString "." version));
+  
     atril = callPackage ./atril { };
     caja = callPackage ./caja { };
     caja-dropbox = callPackage ./caja-dropbox { };
@@ -82,7 +85,7 @@ let
       mate-system-monitor
       mate-terminal
       mate-user-guide
-      #mate-user-share
+      # mate-user-share
       mate-utils
       mozo
       pluma
diff --git a/pkgs/desktops/mate/engrampa/default.nix b/pkgs/desktops/mate/engrampa/default.nix
index b6b60fa24380..8e46102cf5a6 100644
--- a/pkgs/desktops/mate/engrampa/default.nix
+++ b/pkgs/desktops/mate/engrampa/default.nix
@@ -2,13 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "engrampa-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "3";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "1ms6kz8k86hsj9zk5w3087l749022y0j5ba2s9hz8ah6gfx0mvn5";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "1pk053i14a0r5s9qkipwnp4qjg76b763203z64ymnpkslrrarnnm";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/desktops/mate/eom/default.nix b/pkgs/desktops/mate/eom/default.nix
index e4d52183ab40..c3af73282e5c 100644
--- a/pkgs/desktops/mate/eom/default.nix
+++ b/pkgs/desktops/mate/eom/default.nix
@@ -2,13 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "eom-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "3";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "1zr85ilv0f4x8iky002qvh00qhsq1vsfm5z1954gf31hi57z2j25";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "0320ph6cyh0m4cfyvky10j9prk2hry6rpm4jzgcn7ig03dnj4y0s";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/desktops/mate/libmatekbd/default.nix b/pkgs/desktops/mate/libmatekbd/default.nix
index a02f605b470c..209edf1f363b 100644
--- a/pkgs/desktops/mate/libmatekbd/default.nix
+++ b/pkgs/desktops/mate/libmatekbd/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl, pkgconfig, intltool, gtk3, libxklavier }:
+{ stdenv, fetchurl, pkgconfig, intltool, gtk3, mate, libxklavier }:
 
 stdenv.mkDerivation rec {
   name = "libmatekbd-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "2";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "030bl18qbjm7l92bp1bhs7v82bp8j3mv7c1j1a4gd89iz4611pq3";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "1n2zphb3g6ai54nfr0r9s06vn3bmm361xpjga88hmq947fvbpx19";
   };
 
   nativeBuildInputs = [ pkgconfig intltool ];
diff --git a/pkgs/desktops/mate/libmatemixer/default.nix b/pkgs/desktops/mate/libmatemixer/default.nix
index 20cf71c7554d..10a690546f76 100644
--- a/pkgs/desktops/mate/libmatemixer/default.nix
+++ b/pkgs/desktops/mate/libmatemixer/default.nix
@@ -1,4 +1,4 @@
-{ stdenv, fetchurl, pkgconfig, intltool, glib
+{ stdenv, fetchurl, pkgconfig, intltool, glib, mate
 , alsaSupport ? stdenv.isLinux, alsaLib
 , pulseaudioSupport ? stdenv.config.pulseaudio or true, libpulseaudio
 , ossSupport ? false
@@ -6,13 +6,11 @@
 
 stdenv.mkDerivation rec {
   name = "libmatemixer-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "0";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "09vyxnlnalws318gsafdfi5c6jwpp92pbafn1ddlqqds23ihk4mr";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "0jpfaqbspn2mjv6ysgzdmzhb07gx61yiiiwmrw94qymld2igrzb5";
   };
 
   nativeBuildInputs = [ pkgconfig intltool ];
diff --git a/pkgs/desktops/mate/libmateweather/default.nix b/pkgs/desktops/mate/libmateweather/default.nix
index 3ddbb8f6a02a..7efad3a5e3ae 100644
--- a/pkgs/desktops/mate/libmateweather/default.nix
+++ b/pkgs/desktops/mate/libmateweather/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl, pkgconfig, intltool, gtk3, libsoup, tzdata }:
+{ stdenv, fetchurl, pkgconfig, intltool, gtk3, libsoup, tzdata, mate }:
 
 stdenv.mkDerivation rec {
   name = "libmateweather-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "2";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "1q3rvmm533cgiif9hbdp6a92dm727g5i2dv5d8krfa0nl36i468y";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "1c8mvydb0h7z3zn0qahwlp15z5wl6nrv24q4z7ldhm340jnxsvh7";
   };
 
   nativeBuildInputs = [ pkgconfig intltool ];
diff --git a/pkgs/desktops/mate/marco/default.nix b/pkgs/desktops/mate/marco/default.nix
index 522485fd22c2..9a926b78c3d7 100644
--- a/pkgs/desktops/mate/marco/default.nix
+++ b/pkgs/desktops/mate/marco/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl, pkgconfig, intltool, itstool, libxml2, libcanberra_gtk3, libgtop, gnome2, gnome3, wrapGAppsHook }:
+{ stdenv, fetchurl, pkgconfig, intltool, itstool, libxml2, libcanberra_gtk3, libgtop, gnome2, gnome3, mate, wrapGAppsHook }:
 
 stdenv.mkDerivation rec {
   name = "marco-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "2";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "173g9mrnkcgjc6a1maln13iqdl0cqcnca8ydr8767xrn9dlkx9f5";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "07asf8i15ih6ajkp5yapk720qyssi2cinxwg2z5q5j9m6mxax6lr";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/desktops/mate/mate-applets/default.nix b/pkgs/desktops/mate/mate-applets/default.nix
index ba5ef927fb6f..f56d594303c9 100644
--- a/pkgs/desktops/mate/mate-applets/default.nix
+++ b/pkgs/desktops/mate/mate-applets/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl, pkgconfig, intltool, itstool, gnome3, libwnck3, libgtop, libxml2, libnotify, dbus_glib, polkit, upower, wirelesstools, libmateweather, mate-panel, pythonPackages, hicolor_icon_theme, wrapGAppsHook }:
+{ stdenv, fetchurl, pkgconfig, intltool, itstool, gnome3, libwnck3, libgtop, libxml2, libnotify, dbus_glib, polkit, upower, wirelesstools, mate, hicolor_icon_theme, wrapGAppsHook }:
 
 stdenv.mkDerivation rec {
   name = "mate-applets-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "2";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "045cl62nnfsl14vnfydwqjssdakgdrahh5h0xiz5afmdcbq6cqgw";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "1jmhswfcbawp9ax5p5h2dj8pyajadjdyxa0ac7ldvh7viv8qy52s";
   };
 
   nativeBuildInputs = [
@@ -26,14 +24,11 @@ stdenv.mkDerivation rec {
     libgtop
     libxml2
     libnotify
-    dbus_glib
     polkit
     upower
     wirelesstools
-    libmateweather
-    mate-panel
-    pythonPackages.python
-    pythonPackages.pygobject3
+    mate.libmateweather
+    mate.mate-panel
     hicolor_icon_theme
   ];
 
diff --git a/pkgs/desktops/mate/mate-backgrounds/default.nix b/pkgs/desktops/mate/mate-backgrounds/default.nix
index 6ce78491d037..79a322ccb0a5 100644
--- a/pkgs/desktops/mate/mate-backgrounds/default.nix
+++ b/pkgs/desktops/mate/mate-backgrounds/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl, intltool }:
+{ stdenv, fetchurl, intltool, mate }:
 
 stdenv.mkDerivation rec {
   name = "mate-backgrounds-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "0";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "06q8ksjisijps2wn959arywsimhzd3j35mqkr048c26ck24d60zi";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "0pcnjcw00y8hf2bwfrb5sbk2511cbg4fr8vgvgqswcwjp9y15cjp";
   };
 
   nativeBuildInputs = [ intltool ];
diff --git a/pkgs/desktops/mate/mate-calc/default.nix b/pkgs/desktops/mate/mate-calc/default.nix
index b00bcc27ac51..efe8adae678e 100644
--- a/pkgs/desktops/mate/mate-calc/default.nix
+++ b/pkgs/desktops/mate/mate-calc/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl, pkgconfig, intltool, itstool, gtk3, libxml2, wrapGAppsHook }:
+{ stdenv, fetchurl, pkgconfig, intltool, itstool, gtk3, libxml2, mate, wrapGAppsHook }:
 
 stdenv.mkDerivation rec {
   name = "mate-calc-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "1";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "1h6kr9qb1kaw8jvfm7xmqm1wqnxsw2iwha5vl38b986x4zm2b712";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "03cma6b00chd4026pbnh5i0ckpl8b1l7i1ppvcmbfbx0s3vpbc73";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/desktops/mate/mate-common/default.nix b/pkgs/desktops/mate/mate-common/default.nix
index a433104b1fa7..63adb1849dac 100644
--- a/pkgs/desktops/mate/mate-common/default.nix
+++ b/pkgs/desktops/mate/mate-common/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl }:
+{ stdenv, fetchurl, mate }:
 
 stdenv.mkDerivation rec {
   name = "mate-common-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "0";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "1005laf3z1h8qczm7pmwr40r842665cv6ykhjg7r93vldra48z6p";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "0h8s2qhc6f5flslx05cd3xxg243c67vv03spjiag14p8kqqrqvb1";
   };
 
   meta = {
diff --git a/pkgs/desktops/mate/mate-control-center/default.nix b/pkgs/desktops/mate/mate-control-center/default.nix
index 3b04d4b48aa1..e9b789bdc4e9 100644
--- a/pkgs/desktops/mate/mate-control-center/default.nix
+++ b/pkgs/desktops/mate/mate-control-center/default.nix
@@ -5,13 +5,11 @@
 
 stdenv.mkDerivation rec {
   name = "mate-control-center-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "2";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "0flnn0h8f5aqyccwrlv7qxchvr3kqmlfdga6wq28d55zkpv5m7dl";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "0qq3ln40w7lxa7qvbvbsgdq1c5ybzqw3bw2x4z6y6brl4c77sbh7";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/desktops/mate/mate-desktop/default.nix b/pkgs/desktops/mate/mate-desktop/default.nix
index 039c3732d11d..56c0ae4632ca 100644
--- a/pkgs/desktops/mate/mate-desktop/default.nix
+++ b/pkgs/desktops/mate/mate-desktop/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl, pkgconfig, intltool, gnome3, wrapGAppsHook }:
+{ stdenv, fetchurl, pkgconfig, intltool, gnome3, mate, wrapGAppsHook }:
 
 stdenv.mkDerivation rec {
   name = "mate-desktop-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "0";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "12iv2y4dan962fs7vkkxbjkp77pbvjnwfa43ggr0zkdsc3ydjbbg";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "0y5172sbj6f4dvimf4pmz74b9cfidbpmnwwb9f6vlc6fa0kp5l1n";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/desktops/mate/mate-icon-theme-faenza/default.nix b/pkgs/desktops/mate/mate-icon-theme-faenza/default.nix
index 05edfc1dd6d4..6e1f9778e313 100644
--- a/pkgs/desktops/mate/mate-icon-theme-faenza/default.nix
+++ b/pkgs/desktops/mate/mate-icon-theme-faenza/default.nix
@@ -2,13 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "mate-icon-theme-faenza-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "1";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "0vc3wg9l5yrxm0xmligz4lw2g3nqj1dz8fwv90xvym8pbjds2849";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "000vr9cnbl2qlysf2gyg1lsjirqdzmwrnh6d3hyrsfc0r2vh4wna";
   };
 
   nativeBuildInputs = [ autoreconfHook ];
diff --git a/pkgs/desktops/mate/mate-icon-theme/default.nix b/pkgs/desktops/mate/mate-icon-theme/default.nix
index b1c5e82da995..a42116a63af5 100644
--- a/pkgs/desktops/mate/mate-icon-theme/default.nix
+++ b/pkgs/desktops/mate/mate-icon-theme/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl, pkgconfig, intltool, iconnamingutils, librsvg, hicolor_icon_theme, gtk3 }:
+{ stdenv, fetchurl, pkgconfig, intltool, iconnamingutils, librsvg, hicolor_icon_theme, gtk3, mate }:
 
 stdenv.mkDerivation rec {
   name = "mate-icon-theme-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "2";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "0si3li3kza7s45zhasjvqn5f85zpkn0x8i4kq1dlnqvjjqzkg4ch";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "0lmsmsamgg1s6qrk19qwa76ld7x1k3pwhy4vs1ixn1as4iaaddk5";
   };
 
   nativeBuildInputs = [ pkgconfig intltool iconnamingutils ];
diff --git a/pkgs/desktops/mate/mate-indicator-applet/default.nix b/pkgs/desktops/mate/mate-indicator-applet/default.nix
index 7d863a929e7a..4ff636c3c734 100644
--- a/pkgs/desktops/mate/mate-indicator-applet/default.nix
+++ b/pkgs/desktops/mate/mate-indicator-applet/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl, pkgconfig, intltool, gtk3, libindicator-gtk3, mate-panel, hicolor_icon_theme, wrapGAppsHook }:
+{ stdenv, fetchurl, pkgconfig, intltool, gtk3, libindicator-gtk3, mate, hicolor_icon_theme, wrapGAppsHook }:
 
 stdenv.mkDerivation rec {
   name = "mate-indicator-applet-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "1";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "1h77f1gbz1a8l9xyq5fk75bs58mcwx6pbk6db33v0v1mwq6cidiv";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "1fc6j5dnxghpgz8xbf5p8j2jprk97q4q3ajkh6sg5l71gqlnampg";
   };
 
   nativeBuildInputs = [
@@ -20,7 +18,7 @@ stdenv.mkDerivation rec {
   buildInputs = [
     gtk3
     libindicator-gtk3
-    mate-panel
+    mate.mate-panel
     hicolor_icon_theme
   ];
 
diff --git a/pkgs/desktops/mate/mate-media/default.nix b/pkgs/desktops/mate/mate-media/default.nix
index 0586a2e54ebf..f4ee94b4bd37 100644
--- a/pkgs/desktops/mate/mate-media/default.nix
+++ b/pkgs/desktops/mate/mate-media/default.nix
@@ -2,13 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "mate-media-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "2";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "07v37jvrl8m5rhlasrdziwy15gcpn561d7zn5q1yfla2d5ddy0b1";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "09vbw7nc91ljnxm5sbrch0w7zzn2i6qjb1b50q402niwr5b0zicr";
   };
 
   buildInputs = [
diff --git a/pkgs/desktops/mate/mate-menus/default.nix b/pkgs/desktops/mate/mate-menus/default.nix
index 6f4bf48c672a..51263f0d74e7 100644
--- a/pkgs/desktops/mate/mate-menus/default.nix
+++ b/pkgs/desktops/mate/mate-menus/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl, pkgconfig, intltool, glib, gobjectIntrospection, python }:
+{ stdenv, fetchurl, pkgconfig, intltool, glib, gobjectIntrospection, python, mate }:
 
 stdenv.mkDerivation rec {
   name = "mate-menus-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "1";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "03fwv0fvg073dmdbrcbpwjhxpj98aqna804m9nqybhvj3cfyhaz6";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "1w1k6kdabmabhpqvkizk1si6ri4rmspsbj0252ki834ml0dxpnhg";
   };
 
   nativeBuildInputs = [ pkgconfig intltool ];
diff --git a/pkgs/desktops/mate/mate-netbook/default.nix b/pkgs/desktops/mate/mate-netbook/default.nix
index 0a2a0e472020..508e1d359c9a 100644
--- a/pkgs/desktops/mate/mate-netbook/default.nix
+++ b/pkgs/desktops/mate/mate-netbook/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl, pkgconfig, intltool, gtk3, libwnck3, libfakekey, libXtst, mate-panel, wrapGAppsHook }:
+{ stdenv, fetchurl, pkgconfig, intltool, gtk3, libwnck3, libfakekey, libXtst, mate, wrapGAppsHook }:
 
 stdenv.mkDerivation rec {
   name = "mate-netbook-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "2";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "0xy5mhkg0xfgyr7gnnjrfzqhmdnhyqscrl2h496p06cflknm17vb";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "1w92kny1fnlwbq4b8y50n5s1vsvvl4xrvspsp9lqfxyz3jxiwbrz";
   };
 
   nativeBuildInputs = [
@@ -22,7 +20,7 @@ stdenv.mkDerivation rec {
     libwnck3
     libfakekey
     libXtst
-    mate-panel
+    mate.mate-panel
   ];
 
   meta = with stdenv.lib; {
diff --git a/pkgs/desktops/mate/mate-notification-daemon/default.nix b/pkgs/desktops/mate/mate-notification-daemon/default.nix
index c5e53cf57914..53b441a293a6 100644
--- a/pkgs/desktops/mate/mate-notification-daemon/default.nix
+++ b/pkgs/desktops/mate/mate-notification-daemon/default.nix
@@ -1,15 +1,13 @@
 { stdenv, fetchurl, pkgconfig, intltool, dbus_glib, libcanberra_gtk3,
-  libnotify, libwnck3, gnome3, wrapGAppsHook }:
+  libnotify, libwnck3, gnome3, mate, wrapGAppsHook }:
 
 stdenv.mkDerivation rec {
   name = "mate-notification-daemon-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "1";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "102nmd6mnf1fwvw11ggdlgcblq612nd4aar3gdjzqn1fw37591i5";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "0dq457npzid20yfwigdh8gfqgf5wv8p6jhbxfnzybam9xidlqc5f";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/desktops/mate/mate-panel/default.nix b/pkgs/desktops/mate/mate-panel/default.nix
index ec934b1fc637..b05a9a68af04 100644
--- a/pkgs/desktops/mate/mate-panel/default.nix
+++ b/pkgs/desktops/mate/mate-panel/default.nix
@@ -2,13 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "mate-panel-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "7";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "1m0fxyzbvg239dddmz3ksd8871lhkd7n3fxvdgdf4hv9rlvm1klv";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "0cz1pfwvsmrjcd0wa83cid9yjcygla6rhigyr7f75d75kiknlcm7";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/desktops/mate/mate-polkit/default.nix b/pkgs/desktops/mate/mate-polkit/default.nix
index 94fb5ef43e8a..3db773af9fc5 100644
--- a/pkgs/desktops/mate/mate-polkit/default.nix
+++ b/pkgs/desktops/mate/mate-polkit/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl, pkgconfig, intltool, gtk3, gobjectIntrospection, libappindicator-gtk3, libindicator-gtk3, polkit }:
+{ stdenv, fetchurl, pkgconfig, intltool, gtk3, gobjectIntrospection, libappindicator-gtk3, libindicator-gtk3, polkit, mate }:
 
 stdenv.mkDerivation rec {
   name = "mate-polkit-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "2";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "01mxl7wj1501d3clrwlwa54970vpkahp5968xpaxwfb2zbnqgjbd";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "00c1rmi31gv1a3lk7smjp489kd3wrj0d6npagnb8p1rz0g88ha94";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/desktops/mate/mate-power-manager/default.nix b/pkgs/desktops/mate/mate-power-manager/default.nix
index 8b60226d9590..df38485fbc75 100644
--- a/pkgs/desktops/mate/mate-power-manager/default.nix
+++ b/pkgs/desktops/mate/mate-power-manager/default.nix
@@ -2,13 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "mate-power-manager-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "1";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "1sybc4j9bdnb2axmvpbbm85ixhdfa1k1yh769gns56ix0ryd9nr5";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "038c2q5kqvqmkp1i93p4pp9x8p6a9i7lyn3nv522mq06qsbynbww";
   };
 
   buildInputs = [
@@ -21,7 +19,6 @@ stdenv.mkDerivation rec {
      libnotify
      dbus_glib
      upower
-
      mate.mate-panel
   ];
 
diff --git a/pkgs/desktops/mate/mate-screensaver/default.nix b/pkgs/desktops/mate/mate-screensaver/default.nix
index dbaebb4c7be4..e1ae6b4ae1dc 100644
--- a/pkgs/desktops/mate/mate-screensaver/default.nix
+++ b/pkgs/desktops/mate/mate-screensaver/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl, pkgconfig, intltool, gtk3, dbus_glib, libXScrnSaver, libnotify, pam, systemd, mate-desktop, mate-menus, wrapGAppsHook }:
+{ stdenv, fetchurl, pkgconfig, intltool, gtk3, dbus_glib, libXScrnSaver, libnotify, pam, systemd, mate, wrapGAppsHook }:
 
 stdenv.mkDerivation rec {
   name = "mate-screensaver-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "2";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "03za7ssww095i49braaq0di5ir9g6wxh1n5hfgy6b3w9nb0j1y2p";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "1698608m6kf4dn91xdwy7l809yagz02h1k594smj75wvnhr7x4k9";
   };
 
   nativeBuildInputs = [
@@ -24,8 +22,8 @@ stdenv.mkDerivation rec {
     libnotify
     pam
     systemd
-    mate-desktop
-    mate-menus
+    mate.mate-desktop
+    mate.mate-menus
   ];
 
   configureFlags = "--without-console-kit";
diff --git a/pkgs/desktops/mate/mate-sensors-applet/default.nix b/pkgs/desktops/mate/mate-sensors-applet/default.nix
index ed98ffaa645b..130db2420ef1 100644
--- a/pkgs/desktops/mate/mate-sensors-applet/default.nix
+++ b/pkgs/desktops/mate/mate-sensors-applet/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl, pkgconfig, intltool, itstool, gtk3, libxml2, libxslt, libatasmart, libnotify, dbus_glib, lm_sensors, mate-panel, hicolor_icon_theme, wrapGAppsHook }:
+{ stdenv, fetchurl, pkgconfig, intltool, itstool, gtk3, libxml2, libxslt, libatasmart, libnotify, dbus_glib, lm_sensors, mate, hicolor_icon_theme, wrapGAppsHook }:
 
 stdenv.mkDerivation rec {
   name = "mate-sensors-applet-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "3";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "1nm68rhp73kgvs7wwsgs5zbvq3lzaanl5s5nnn28saiknjbz1mcx";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "1yj8zr9w0a1h4bpd27w7ssg97vnrz7yr10jqhx67yyb900ccr3ik";
   };
 
   nativeBuildInputs = [
@@ -27,7 +25,7 @@ stdenv.mkDerivation rec {
     libnotify
     dbus_glib
     lm_sensors
-    mate-panel
+    mate.mate-panel
     hicolor_icon_theme
   ];
 
diff --git a/pkgs/desktops/mate/mate-session-manager/default.nix b/pkgs/desktops/mate/mate-session-manager/default.nix
index f15a78120cba..d154b80263c6 100644
--- a/pkgs/desktops/mate/mate-session-manager/default.nix
+++ b/pkgs/desktops/mate/mate-session-manager/default.nix
@@ -1,17 +1,15 @@
 { stdenv, fetchurl, pkgconfig, intltool, xtrans, dbus_glib, systemd,
-  libSM, libXtst, gtk3, mate-desktop, hicolor_icon_theme,
+  libSM, libXtst, gtk3, hicolor_icon_theme, mate,
   wrapGAppsHook
 }:
 
 stdenv.mkDerivation rec {
   name = "mate-session-manager-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "2";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "11ii7azl8rn9mfymcmcbpysyd12vrxp4s8l3l6yk4mwlr3gvzxj0";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "0vzr6y9shw4zb3ddfrj0nn7yqggpq9sv6h33p0xxdx71ydl40p2g";
   };
 
   nativeBuildInputs = [
@@ -27,7 +25,7 @@ stdenv.mkDerivation rec {
     libSM
     libXtst
     gtk3
-    mate-desktop
+    mate.mate-desktop
     hicolor_icon_theme
   ];
 
diff --git a/pkgs/desktops/mate/mate-settings-daemon/default.nix b/pkgs/desktops/mate/mate-settings-daemon/default.nix
index 86eec907651c..dc1272115b8e 100644
--- a/pkgs/desktops/mate/mate-settings-daemon/default.nix
+++ b/pkgs/desktops/mate/mate-settings-daemon/default.nix
@@ -4,13 +4,11 @@
 
 stdenv.mkDerivation rec {
   name = "mate-settings-daemon-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "2";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "0v2kdzfmfqq0avlrxnxysmkawy83g7sanmyhivisi5vg4rzsr0a4";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "0p4fr2sgkjcjsrmkdy579xmk20dl0sa6az40rzvm6fb2w6693sf5";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/desktops/mate/mate-system-monitor/default.nix b/pkgs/desktops/mate/mate-system-monitor/default.nix
index 1378cc7f3ba5..8c67044a4220 100644
--- a/pkgs/desktops/mate/mate-system-monitor/default.nix
+++ b/pkgs/desktops/mate/mate-system-monitor/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl, pkgconfig, intltool, itstool, gtkmm3, libxml2, libgtop, libwnck3, librsvg, systemd, wrapGAppsHook }:
+{ stdenv, fetchurl, pkgconfig, intltool, itstool, gtkmm3, libxml2, libgtop, libwnck3, librsvg, systemd, mate, wrapGAppsHook }:
 
 stdenv.mkDerivation rec {
   name = "mate-system-monitor-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "1";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "1xhz7d9045xfh431rn27kh1sd1clbzkfrw1zkjgfnpad6v3aaaks";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "059aryj0gz4sic719nsmckhkjl4yhqxmyplvh78clf5khh4apwn5";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/desktops/mate/mate-terminal/default.nix b/pkgs/desktops/mate/mate-terminal/default.nix
index 590ae7c7f813..b90211ae0611 100644
--- a/pkgs/desktops/mate/mate-terminal/default.nix
+++ b/pkgs/desktops/mate/mate-terminal/default.nix
@@ -2,13 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "mate-terminal-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "2";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "053jdcjalywcq4fvqlb145sfp5hmnd6yyk9ckzvkh6fl3gyp54gc";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "03366hs7mxazn6m6y53ppkb1din4jywljg0lx8zw101qg6car0az";
   };
 
   buildInputs = [
diff --git a/pkgs/desktops/mate/mate-themes/default.nix b/pkgs/desktops/mate/mate-themes/default.nix
index c29c0560cd1d..c68b8b7d9bd8 100644
--- a/pkgs/desktops/mate/mate-themes/default.nix
+++ b/pkgs/desktops/mate/mate-themes/default.nix
@@ -3,20 +3,11 @@
 
 stdenv.mkDerivation rec {
   name = "mate-themes-${version}";
-  version = "${major-ver}.${minor-ver}";
-  # There is no 3.24 release.
-  major-ver = if stdenv.lib.versionOlder gnome3.version "3.23" then gnome3.version else "3.22";
-  minor-ver = {
-    "3.20" = "23";
-    "3.22" = "14";
-  }."${major-ver}";
+  version = "3.22.15";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/themes/${major-ver}/${name}.tar.xz";
-    sha256 = {
-      "3.20" = "0xmcm1kmkhbakhwy5vvx3gll5v2gvihwnbf0gyjf75fys6h3818g";
-      "3.22" = "09fqvlnmrvc73arl7jv9ygkxi46lw7c1q8qra6w3ap7x83f9zdak";
-    }."${major-ver}";
+    url = "http://pub.mate-desktop.org/releases/themes/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "0cmlbj6vlkavdirc5xnsgwmy0m11bj9yrbv1dkq46n1s23rvv6wg";
   };
 
   nativeBuildInputs = [ pkgconfig intltool ];
diff --git a/pkgs/desktops/mate/mate-user-guide/default.nix b/pkgs/desktops/mate/mate-user-guide/default.nix
index ce8029fb2152..55cd82eecdc7 100644
--- a/pkgs/desktops/mate/mate-user-guide/default.nix
+++ b/pkgs/desktops/mate/mate-user-guide/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl, intltool, itstool, libxml2, yelp }:
+{ stdenv, fetchurl, intltool, itstool, libxml2, yelp, mate }:
 
 stdenv.mkDerivation rec {
   name = "mate-user-guide-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "0";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "0f3b46r9a3cywm7rpj08xlkfnlfr9db58xfcpix8i33qp50fxqmb";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "1n1rlvymz8k7vvjmd9qkv26wz3770w1ywsa41kbisbfp9x7mr0w2";
   };
 
   nativeBuildInputs = [ itstool intltool libxml2 ];
diff --git a/pkgs/desktops/mate/mate-user-share/default.nix b/pkgs/desktops/mate/mate-user-share/default.nix
index afacad527782..f5393cad0b88 100644
--- a/pkgs/desktops/mate/mate-user-share/default.nix
+++ b/pkgs/desktops/mate/mate-user-share/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl, pkgconfig, intltool, itstool, gtk3, dbus_glib, libnotify, libxml2, libcanberra_gtk3, caja, mod_dnssd, apacheHttpd, hicolor_icon_theme, wrapGAppsHook }:
+{ stdenv, fetchurl, pkgconfig, intltool, itstool, gtk3, dbus_glib, libnotify, libxml2, libcanberra_gtk3, mod_dnssd, apacheHttpd, hicolor_icon_theme, mate, wrapGAppsHook }:
 
 stdenv.mkDerivation rec {
   name = "mate-user-share-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "0";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "0w7r7jmm12n41hcxj1pfk3f0xy69cddx7ga490x191rdpcb3ry1n";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "0lv5ndjk2br4w7cw8gsgj7aa2iadxv7m4wii4c49pajmd950iff2";
   };
 
   nativeBuildInputs = [
@@ -24,7 +22,7 @@ stdenv.mkDerivation rec {
     libnotify
     libcanberra_gtk3
     libxml2
-    caja
+    mate.caja
     hicolor_icon_theme
     # Should mod_dnssd and apacheHttpd be runtime dependencies?
     # In gnome-user-share they are not.
diff --git a/pkgs/desktops/mate/mate-utils/default.nix b/pkgs/desktops/mate/mate-utils/default.nix
index 281fef42e612..946dc3efd253 100644
--- a/pkgs/desktops/mate/mate-utils/default.nix
+++ b/pkgs/desktops/mate/mate-utils/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl, pkgconfig, intltool, itstool, gtk3, libxml2, libgtop, libcanberra_gtk3, mate-panel, hicolor_icon_theme, wrapGAppsHook }:
+{ stdenv, fetchurl, pkgconfig, intltool, itstool, gtk3, libxml2, libgtop, libcanberra_gtk3, mate, hicolor_icon_theme, wrapGAppsHook }:
 
 stdenv.mkDerivation rec {
   name = "mate-utils-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "3";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "1nw8rcq3x67v73cmy44zz6r2ikz46wsx834qzkbq4i2ac96kdkfz";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "10a6k8gi7cajlkbj1jbvk3s633hw58lan3rc85v8jlrkwm7wmhpl";
   };
 
   nativeBuildInputs = [
@@ -23,7 +21,7 @@ stdenv.mkDerivation rec {
     libgtop
     libcanberra_gtk3
     libxml2
-    mate-panel
+    mate.mate-panel
     hicolor_icon_theme
   ];
 
diff --git a/pkgs/desktops/mate/mozo/default.nix b/pkgs/desktops/mate/mozo/default.nix
index b376736c473d..e98d16d774e2 100644
--- a/pkgs/desktops/mate/mozo/default.nix
+++ b/pkgs/desktops/mate/mozo/default.nix
@@ -1,17 +1,15 @@
-{ stdenv, fetchurl, pkgconfig, intltool, mate-menus, pythonPackages }:
+{ stdenv, fetchurl, pkgconfig, intltool, mate, pythonPackages }:
 
 stdenv.mkDerivation rec {
   name = "mozo-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "0";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "04yn9bw64q5a5kvpmkb7rb3mlp11pmnvkbphficsgb0368fj895b";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "1108avdappfjadd46ld7clhh5m9f4b5khl5y33l377m8ky9dy87g";
   };
   
-  pythonPath = [ mate-menus pythonPackages.pygobject3 ];
+  pythonPath = [ mate.mate-menus pythonPackages.pygobject3 ];
 
   nativeBuildInputs = [ pkgconfig intltool pythonPackages.wrapPython ];
 
diff --git a/pkgs/desktops/mate/pluma/default.nix b/pkgs/desktops/mate/pluma/default.nix
index d6d3d46f7cd6..d951c9f9bbd0 100644
--- a/pkgs/desktops/mate/pluma/default.nix
+++ b/pkgs/desktops/mate/pluma/default.nix
@@ -2,13 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "pluma-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "3";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "1bz2jvjfz761hcvhcbkz8sc4xf0iyixh5w0k7bx69qkwwdc0gxi0";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "0w2x270n11rfa321cdlycfhcgncwxqpikjyl3lwmn4vkx8nhgq5f";
   };
 
   nativeBuildInputs = [
diff --git a/pkgs/desktops/mate/python-caja/default.nix b/pkgs/desktops/mate/python-caja/default.nix
index 4eb9b72b8b5f..566245c4441d 100644
--- a/pkgs/desktops/mate/python-caja/default.nix
+++ b/pkgs/desktops/mate/python-caja/default.nix
@@ -1,14 +1,12 @@
-{ stdenv, fetchurl, pkgconfig, intltool, gtk3, caja, pythonPackages }:
+{ stdenv, fetchurl, pkgconfig, intltool, gtk3, mate, pythonPackages }:
 
 stdenv.mkDerivation rec {
   name = "python-caja-${version}";
-  version = "${major-ver}.${minor-ver}";
-  major-ver = "1.18";
-  minor-ver = "1";
+  version = "1.20.0";
 
   src = fetchurl {
-    url = "http://pub.mate-desktop.org/releases/${major-ver}/${name}.tar.xz";
-    sha256 = "0n43cvvv29gq31hgrsf9al184cr87c3hzskrh2593rid52kwyz44";
+    url = "http://pub.mate-desktop.org/releases/${mate.getRelease version}/${name}.tar.xz";
+    sha256 = "0bcgg3p01zik53l5ns48575yw0k88fyc044yvp9fvwy5jqqg1ykk";
   };
 
   nativeBuildInputs = [
@@ -19,7 +17,7 @@ stdenv.mkDerivation rec {
 
   buildInputs = [
     gtk3
-    caja
+    mate.caja
     pythonPackages.python
     pythonPackages.pygobject3
   ];
diff --git a/pkgs/desktops/mate/update.sh b/pkgs/desktops/mate/update.sh
new file mode 100755
index 000000000000..736bcbd34fc6
--- /dev/null
+++ b/pkgs/desktops/mate/update.sh
@@ -0,0 +1,54 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p libarchive curl common-updater-scripts
+
+set -eu -o pipefail
+
+cd "$(dirname "${BASH_SOURCE[0]}")"
+root=../../..
+export NIXPKGS_ALLOW_UNFREE=1
+
+mate_version=1.20
+theme_version=3.22
+materepo=https://pub.mate-desktop.org/releases/${mate_version}
+themerepo=https://pub.mate-desktop.org/releases/themes/${theme_version}
+
+version() {
+    (cd "$root" && nix-instantiate --eval --strict -A "$1.version" | tr -d '"')
+}
+
+update_package() {
+    local p=$1
+    echo $p
+
+    local repo
+    if [ "$p" = "mate-themes" ]; then
+        repo=$themerepo
+    else
+        repo=$materepo
+    fi
+  
+    local p_version_old=$(version mate.$p)
+    local p_versions=$(curl -sS ${repo}/ | sed -rne "s/.*\"$p-([0-9]+\\.[0-9]+\\.[0-9]+)\\.tar\\.xz.*/\\1/p")
+    local p_version=$(echo $p_versions | sed -e 's/ /\n/g' | sort -t. -k 1,1n -k 2,2n -k 3,3n | tail -n1)
+  
+    if [[ "$p_version" = "$p_version_old" ]]; then
+        echo "nothing to do, $p $p_version is current"
+        echo
+        return
+    fi
+
+    # Download package and save hash and file path.
+    local url="$repo/$p-${p_version}.tar.xz"
+    mapfile -t prefetch < <(nix-prefetch-url --print-path "$url")
+    local hash=${prefetch[0]}
+    local path=${prefetch[1]}
+    echo "$p: $p_version_old -> $p_version"
+    (cd "$root" && update-source-version mate.$p "$p_version" "$hash")
+    echo
+}
+
+for d in $(ls -A --indicator-style=none); do
+    if [ -d $d ]; then
+        update_package $d
+    fi
+done