diff --git a/pkgs/development/libraries/haskell/ltk/default.nix b/pkgs/development/libraries/haskell/ltk/default.nix
index 7960395eb098..df1e4be218f0 100644
--- a/pkgs/development/libraries/haskell/ltk/default.nix
+++ b/pkgs/development/libraries/haskell/ltk/default.nix
@@ -1,10 +1,12 @@
-{ cabal, Cabal, filepath, glib, gtk, mtl, parsec, transformers }:
+{ cabal, Cabal, filepath, glib, gtk3, mtl, parsec, transformers }:
 
 cabal.mkDerivation (self: {
   pname = "ltk";
-  version = "0.12.1.0";
-  sha256 = "12x6nba5bll8fgzpxii1cf87j27jk4mn5gf1bx4ahd9v30h1a0h6";
-  buildDepends = [ Cabal filepath glib gtk mtl parsec transformers ];
+  version = "0.13.1.0";
+  sha256 = "09ryyzjd3iazwiw714hsny2b9f4b1cfhyzc11k5xzin5kh5d804a";
+  buildDepends = [
+    Cabal filepath glib gtk3 mtl parsec transformers
+  ];
   meta = {
     homepage = "http://www.leksah.org";
     description = "Leksah tool kit";