diff --git a/pkgs/development/libraries/gecode/default.nix b/pkgs/development/libraries/gecode/default.nix
index c897609ee595..c0deb2d5fca6 100644
--- a/pkgs/development/libraries/gecode/default.nix
+++ b/pkgs/development/libraries/gecode/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "gecode-${version}";
-  version = "4.3.0";
+  version = "4.3.3";
 
   src = fetchurl {
     url = "http://www.gecode.org/download/${name}.tar.gz";
-    sha256 = "18a1nd6sxqqh05hd9zwcgq9qhqrr6hi0nbzpwpay1flkv5gvg2d7";
+    sha256 = "1nxcv32pqmf7fsdpa8zp482i8a1nhrfppqaimymcxvxjgxzmpj1i";
   };
 
   buildInputs = [ perl ];