diff --git a/pkgs/development/libraries/haskell/gtk/default.nix b/pkgs/development/libraries/haskell/gtk/default.nix
index 6acf1fb90c6..9ac6fb2f6f2 100644
--- a/pkgs/development/libraries/haskell/gtk/default.nix
+++ b/pkgs/development/libraries/haskell/gtk/default.nix
@@ -4,8 +4,8 @@
 
 cabal.mkDerivation (self: {
   pname = "gtk";
-  version = "0.12.5.0";
-  sha256 = "1xj2x9aakk70k3z88klfniqvffzbdkn55vslbqk60k6sv4k3qs2n";
+  version = "0.12.5.2";
+  sha256 = "06jlwln3w2pgzahhy8n4sqv1chmh899naz8avqabr9ni4hmbrssb";
   buildDepends = [ cairo glib mtl pango ];
   buildTools = [ gtk2hsBuildtools ];
   extraLibraries = [ libc pkgconfig ];