diff --git a/pkgs/development/libraries/opencv/default.nix b/pkgs/development/libraries/opencv/default.nix
index 291ca560c03d..a7e514a5780f 100644
--- a/pkgs/development/libraries/opencv/default.nix
+++ b/pkgs/development/libraries/opencv/default.nix
@@ -1,14 +1,14 @@
 { stdenv, fetchurl, cmake, gtk, libjpeg, libpng, libtiff, jasper, ffmpeg
 , pkgconfig, gstreamer, xineLib, glib, python27, python27Packages }:
 
-let v = "2.4.3"; in
+let v = "2.4.5"; in
 
 stdenv.mkDerivation rec {
   name = "opencv-${v}";
 
   src = fetchurl {
-    url = "mirror://sourceforge/opencvlibrary/OpenCV-${v}.tar.bz2";
-    sha256 = "16zmyr383x9ka81mp6h2s9hlfzd383njddf3x1rswkldjy2ykyzq";
+    url = "mirror://sourceforge/opencvlibrary/opencv-${v}.tar.gz";
+    sha256 = "14k2w07jcchp11c9v6p5x49h3h1zmg2m9brm2sypz5sp9g7yw2yk";
   };
 
   buildInputs = [ gtk glib libjpeg libpng libtiff jasper ffmpeg xineLib gstreamer