diff --git a/pkgs/development/python-modules/pyqt/default.nix b/pkgs/development/python-modules/pyqt/default.nix
index deba647c662..ac7e3efcee4 100644
--- a/pkgs/development/python-modules/pyqt/default.nix
+++ b/pkgs/development/python-modules/pyqt/default.nix
@@ -1,11 +1,17 @@
-{stdenv, fetchurl, python, sip, qt4}:
+{stdenv, fetchurl, lib, python, sip, qt4}:
 
 stdenv.mkDerivation {
-  name = "pyqt-x11-gpl-4.4.4";
+  name = "pyqt-x11-gpl-4.5.4";
   src = fetchurl {
-    url = http://www.riverbankcomputing.co.uk/static/Downloads/PyQt4/PyQt-x11-gpl-4.4.4.tar.gz;
-    md5 = "4bd346d56d10452e47ac71e2cbe04229";
+    url = http://www.riverbankcomputing.co.uk/static/Downloads/PyQt4/PyQt-x11-gpl-4.5.4.tar.gz;
+    sha256 = "1a55zng6yhnbk5swc02bkbyccdgf0f0v94yxk9v5a43hv9xnrl5k";
   };
   configurePhase = "python ./configure.py --confirm-license -b $out/bin -d $out/lib/python2.5/site-packages -v $out/share/sip -p $out/plugins";
   buildInputs = [ python sip qt4 ];
+  meta = {
+    description = "Python bindings for Qt";
+    license = "GPL";
+    homepage = http://www.riverbankcomputing.co.uk;
+    maintainers = [ lib.maintainers.sander ];
+  };
 }
diff --git a/pkgs/development/python-modules/python-sip/default.nix b/pkgs/development/python-modules/python-sip/default.nix
index 4dca67cd3f7..5268dbb7a0c 100644
--- a/pkgs/development/python-modules/python-sip/default.nix
+++ b/pkgs/development/python-modules/python-sip/default.nix
@@ -1,11 +1,16 @@
-{stdenv, fetchurl, python}:
+{stdenv, fetchurl, lib, python}:
 
 stdenv.mkDerivation {
-  name = "sip-4.7.9";
+  name = "sip-4.8.2";
   src = fetchurl {
-    url = http://www.riverbankcomputing.co.uk/static/Downloads/sip4/sip-4.7.9.tar.gz;
-    md5 = "597d7ff7edb42a18421c806ffd18a136";
+    url = http://www.riverbankcomputing.co.uk/static/Downloads/sip4/sip-4.8.2.tar.gz;
+    sha256 = "1afr2qaibzgf8fq4fmc31jz9hvbwxbg5jvl68ygvkkdvnbg2kfrf";
   };
   configurePhase = "python ./configure.py -d $out/lib/python2.5/site-packages -b $out/bin -e $out/include";
   buildInputs = [ python ];
+  meta = {
+    description = "Creates C++ bindings for Python modules";
+    license = "GPL";
+    maintainers = [ lib.maintainers.sander ];
+  };
 }
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 466c002df8a..e4cd91067ec 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -4475,7 +4475,7 @@ let
   };
 
   sip = import ../development/python-modules/python-sip {
-    inherit stdenv fetchurl python;
+    inherit stdenv fetchurl lib python;
   };
 
   pyqt = builderDefsPackage (selectVersion ../development/python-modules/pyqt "4.3.3") {
@@ -4486,7 +4486,8 @@ let
   };
 
   pyqt4 = import ../development/python-modules/pyqt {
-    inherit stdenv fetchurl python sip qt4;
+    inherit stdenv fetchurl lib python sip;
+    qt4 = qt45;
   };
 
   pyx = import ../development/python-modules/pyx {