diff --git a/pkgs/applications/networking/instant-messengers/qtox/default.nix b/pkgs/applications/networking/instant-messengers/qtox/default.nix
index 72619e417ad..541fb5727ce 100644
--- a/pkgs/applications/networking/instant-messengers/qtox/default.nix
+++ b/pkgs/applications/networking/instant-messengers/qtox/default.nix
@@ -1,19 +1,21 @@
-{ stdenv, fetchgit, pkgconfig, libtoxcore-dev, openal, opencv,
+{ stdenv, fetchFromGitHub, pkgconfig, libtoxcore-dev, openal, opencv,
   libsodium, libXScrnSaver, glib, gdk_pixbuf, gtk2, cairo,
   pango, atk, qrencode, ffmpeg, filter-audio, makeWrapper,
   qtbase, qtsvg, qttools, qttranslations, sqlcipher }:
 
 let
-  revision = "8b671916abdcc1d553a367a502b23ec4ea7568a1";
+  version = "1.2.4";
+  revision = "v${version}";
 in
 
 stdenv.mkDerivation rec {
-  name = "qtox-dev-20151221";
+  name = "qtox-${version}";
 
-  src = fetchgit {
-      url = "https://github.com/tux3/qTox.git";
-      rev = "${revision}";
-      md5 = "a93a63d35e506be4b21abda0986f19e7";
+  src = fetchFromGitHub {
+      owner = "tux3";
+      repo = "qTox";
+      rev = revision;
+      sha256 = "0iqnl00kmbpf3pn6z38n3cjzzsqpw2793j60c24kkrydapihknz9";
   };
 
   buildInputs =
@@ -37,6 +39,7 @@ stdenv.mkDerivation rec {
     export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE $(pkg-config --cflags cairo)"
     export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE $(pkg-config --cflags pango)"
     export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE $(pkg-config --cflags atk)"
+    export NIX_CFLAGS_COMPILE="$NIX_CFLAGS_COMPILE $(pkg-config --cflags sqlcipher)"
   '';
 
   configurePhase = ''
diff --git a/pkgs/applications/networking/instant-messengers/utox/default.nix b/pkgs/applications/networking/instant-messengers/utox/default.nix
index 61b7e8ec510..55ec1560c5e 100644
--- a/pkgs/applications/networking/instant-messengers/utox/default.nix
+++ b/pkgs/applications/networking/instant-messengers/utox/default.nix
@@ -1,41 +1,23 @@
-{ stdenv, fetchFromGitHub, pkgconfig, libtoxcore-dev, dbus, libvpx, libX11, openal, freetype, libv4l
+{ stdenv, fetchFromGitHub, pkgconfig, libtoxcore-dev, filter-audio, dbus, libvpx, libX11, openal, freetype, libv4l
 , libXrender, fontconfig, libXext, libXft, utillinux, git, libsodium }:
 
-let
-
-  filteraudio = stdenv.mkDerivation rec {
-    name = "filter_audio-20150516";
-
-    src = fetchFromGitHub {
-      owner = "irungentoo";
-      repo = "filter_audio";
-      rev = "612c5a102550c614e4c8f859e753ea64c0b7250c";
-      sha256 = "0bmf8dxnr4vb6y36lvlwqd5x68r4cbsd625kbw3pypm5yqp0n5na";
-    };
-
-    buildInputs = [ utillinux ];
-
-    doCheck = false;
-
-    makeFlags = "PREFIX=$(out)";
-  };
-
-in stdenv.mkDerivation rec {
-  name = "utox-dev-20151220";
+stdenv.mkDerivation rec {
+  name = "utox-${version}";
+  version = "0.5.0";
 
   src = fetchFromGitHub {
     owner = "GrayHatter";
     repo = "uTox";
-    rev = "7e2907470835746b6819d631b48dd54bc9c4de66";
+    rev = "v${version}";
     sha256 = "074wa0np8hyqwy9xqgyyds94pdfv2i1jh019m98d8apxc5vn36wk";
   };
 
   buildInputs = [ pkgconfig libtoxcore-dev dbus libvpx libX11 openal freetype
-                  libv4l libXrender fontconfig libXext libXft filteraudio 
+                  libv4l libXrender fontconfig libXext libXft filter-audio
                   git libsodium ];
 
   doCheck = false;
-  
+
   makeFlags = "PREFIX=$(out)";
 
   meta = with stdenv.lib; {
diff --git a/pkgs/development/libraries/filter_audio/default.nix b/pkgs/development/libraries/filter_audio/default.nix
deleted file mode 100644
index 3082e11efbf..00000000000
--- a/pkgs/development/libraries/filter_audio/default.nix
+++ /dev/null
@@ -1,24 +0,0 @@
-{ stdenv, fetchFromGitHub, utillinux }:
-
-stdenv.mkDerivation rec {
-  name = "filter_audio-${version}";
-  version = "76428a6cda43ae77f3936f4527c5f86eb3a5e211";
-
-  src = fetchFromGitHub {
-    owner  = "irungentoo";
-    repo   = "filter_audio";
-    rev    = "${version}";
-    sha256 = "0c4wp9a7dzbj9ykfkbsxrkkyy0nz7vyr5map3z7q8bmv9pjylbk9";
-  };
-
-  buildInputs = [ utillinux ];
-  makeFlags = "PREFIX=$(out)";
-
-  meta = with stdenv.lib; {
-    description = "An easy to use audio filtering library made from webrtc code";
-    homepage    = https://github.com/irungentoo/filter_audio;
-    license     = licenses.bsd3;
-    maintainers = with maintainers; [ np ];
-    platforms   = platforms.unix;
-  };
-}
diff --git a/pkgs/development/libraries/libtoxcore/new-api/default.nix b/pkgs/development/libraries/libtoxcore/new-api/default.nix
index d9c543efd6c..5bb0427f181 100644
--- a/pkgs/development/libraries/libtoxcore/new-api/default.nix
+++ b/pkgs/development/libraries/libtoxcore/new-api/default.nix
@@ -2,13 +2,13 @@
 , libvpx, check, libconfig, pkgconfig }:
 
 stdenv.mkDerivation rec {
-  name = "tox-core-dev-20160105";
+  name = "tox-core-dev-20160131";
 
   src = fetchFromGitHub {
     owner  = "irungentoo";
     repo   = "toxcore";
-    rev    = "b9ef24875ce1d9bf5f04f0164ae95f729330a295";
-    sha256 = "0hxwp4nk5an3a2pmha6x2729mxm57j52vnrsq47gir31c0hk6x2x";
+    rev    = "94cc8b11ff473064526737936f64b6f9a19c239d";
+    sha256 = "0njara08p5vmhs6kp04b7gxw8l6xrlmwnlb76n2g96v0rn0i9k2w";
   };
 
   NIX_LDFLAGS = "-lgcc_s";
@@ -52,4 +52,3 @@ stdenv.mkDerivation rec {
     platforms = platforms.all;
   };
 }
-
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 2d59b57977b..0471a1f8928 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -896,8 +896,6 @@ let
 
   fop = callPackage ../tools/typesetting/fop { };
 
-  filter_audio = callPackage ../development/libraries/filter_audio { };
-
   fzf = goPackages.fzf.bin // { outputs = [ "bin" ]; };
 
   gencfsm = callPackage ../tools/security/gencfsm { };