diff --git a/pkgs/development/libraries/qt-4/default.nix b/pkgs/development/libraries/qt-4/default.nix
index 8bb4788fd62f..a378a9dd94b4 100644
--- a/pkgs/development/libraries/qt-4/default.nix
+++ b/pkgs/development/libraries/qt-4/default.nix
@@ -4,8 +4,8 @@ stdenv.mkDerivation {
   name = "qt-4.4.3";
   
   src = fetchurl {
-    url = ftp://ftp.trolltech.com/qt/source/qt-x11-opensource-src-4.5.0.tar.bz2;
-    sha256 = "e1b356a54e65781ed94f19d785356a88daa8d38b9dbbca35439b80ca8c4a5be9";
+    url = ftp://ftp.trolltech.com/qt/source/qt-x11-opensource-src-4.4.3.tar.bz2;
+    sha256 = "1nfdf1aj6vb7qyacsnjyjxrnaf44hz7vzykf6zra2znd87pglz51";
   };
   
   setupHook = ./setup-hook.sh;