diff --git a/pkgs/development/libraries/fplll/default.nix b/pkgs/development/libraries/fplll/default.nix
index c2952cb47f1c..694b6d567eba 100644
--- a/pkgs/development/libraries/fplll/default.nix
+++ b/pkgs/development/libraries/fplll/default.nix
@@ -1,22 +1,55 @@
-{stdenv, fetchFromGitHub, autoconf, automake, libtool, gettext, autoreconfHook
-, gmp, mpfr
+{ stdenv
+, fetchFromGitHub
+, fetchpatch
+, gettext
+, autoreconfHook
+, gmp
+, mpfr
 }:
+
 stdenv.mkDerivation rec {
   pname = "fplll";
-  version = "5.2.1";
+  version = "5.3.0";
+
   src = fetchFromGitHub {
-    owner = pname;
-    repo = pname;
+    owner = "fplll";
+    repo = "fplll";
     rev = version;
-    sha256 = "015qmrd7nfaysbv1hbwiprz9g6hnww1y1z1xw8f43ysb7k1b5nbg";
+    sha256 = "0wxa4xs7as7y47h7i6prmk5r0srabdvrlkvza3j50pixir5swgvh";
   };
-  nativeBuildInputs = [autoconf automake libtool gettext autoreconfHook];
-  buildInputs = [gmp mpfr];
-  meta = {
-    inherit version;
+
+  patches = [
+    # https://github.com/fplll/fpylll/issues/161
+    (fetchpatch {
+      name = "fix-out-of-bounds-access.patch";
+      url = "https://github.com/fplll/fplll/pull/398/commits/f68e257228bf073ef380f996326d02197ce7b0e4.patch";
+      sha256 = "1rapkcf389lf579va6kbnvhzyv36n4l4d9n0vg2zxprvql8wvm7m";
+    })
+  ];
+
+  nativeBuildInputs = [
+    gettext
+    autoreconfHook
+  ];
+
+  buildInputs = [
+    gmp
+    mpfr
+  ];
+
+  meta = with stdenv.lib; {
     description = ''Lattice algorithms using floating-point arithmetic'';
-    license = stdenv.lib.licenses.lgpl21Plus;
-    maintainers = [stdenv.lib.maintainers.raskin];
-    platforms = stdenv.lib.platforms.unix;
+    changelog = [
+      # Some release notes are added to the github tags, though they are not
+      # always complete.
+      "https://github.com/fplll/fplll/releases/tag/${version}"
+      # Releases are announced on this mailing list. Unfortunately it is not
+      # possible to generate a direct link to the most recent announcement, but
+      # this search should find it.
+      "https://groups.google.com/forum/#!searchin/fplll-devel/FPLLL$20${version}"
+    ];
+    license = licenses.lgpl21Plus;
+    maintainers = with maintainers; [raskin timokau];
+    platforms = platforms.unix;
   };
 }
diff --git a/pkgs/development/python-modules/fpylll/default.nix b/pkgs/development/python-modules/fpylll/default.nix
index a27e9494911c..7bc4ed82fea7 100644
--- a/pkgs/development/python-modules/fpylll/default.nix
+++ b/pkgs/development/python-modules/fpylll/default.nix
@@ -14,13 +14,13 @@
 
 buildPythonPackage rec {
   pname = "fpylll";
-  version = "0.4.1dev";
+  version = "0.5.0dev";
 
   src = fetchFromGitHub {
     owner = "fplll";
     repo = "fpylll";
     rev = version;
-    sha256 = "01x2sqdv0sbjj4g4waj0hj4rcn4bq7h17442xaqwbznym9azmn9w";
+    sha256 = "091zqgsqd5cqma1hvimkq5xpr9f1jw80v9m2fr6k9hvssqjzgnab";
   };
 
   buildInputs = [
@@ -45,11 +45,16 @@ buildPythonPackage rec {
   ];
 
   checkPhase = ''
-    py.test
+    # Since upstream introduced --doctest-modules in
+    # https://github.com/fplll/fpylll/commit/9732fdb40cf1bd43ad1f60762ec0a8401743fc79,
+    # it is necessary to ignore import mismatches. Not sure why, but the files
+    # should be identical anyway.
+    PY_IGNORE_IMPORTMISMATCH=1 pytest
   '';
 
   meta = {
     description = "A Python interface for fplll";
+    changelog = "https://github.com/fplll/fpylll/releases/tag/${version}";
     homepage = https://github.com/fplll/fpylll;
     maintainers = with lib.maintainers; [ timokau ];
     license = lib.licenses.gpl2Plus;