diff --git a/pkgs/development/libraries/haskell/gtk2hs-buildtools/default.nix b/pkgs/development/libraries/haskell/gtk2hs-buildtools/default.nix
index 9bec0bacb34e..e0a0053b2ea5 100644
--- a/pkgs/development/libraries/haskell/gtk2hs-buildtools/default.nix
+++ b/pkgs/development/libraries/haskell/gtk2hs-buildtools/default.nix
@@ -4,8 +4,8 @@
 
 cabal.mkDerivation (self: {
   pname = "gtk2hs-buildtools";
-  version = "0.12.5.2";
-  sha256 = "1w4mfwkiqil9xd1xl4himb6vnl66hxb7a4vch6wh3bfad880qyiw";
+  version = "0.13.0.0";
+  sha256 = "075f6jjkk56h0nda0gbdr775d72c0b3d2z483cff2bnnjf8aqwa6";
   isLibrary = false;
   isExecutable = true;
   buildDepends = [ filepath hashtables random ];