diff --git a/pkgs/development/libraries/mygui/default.nix b/pkgs/development/libraries/mygui/default.nix
index 94c578f6c268..894d35eb3d8a 100644
--- a/pkgs/development/libraries/mygui/default.nix
+++ b/pkgs/development/libraries/mygui/default.nix
@@ -5,13 +5,13 @@ let
   renderSystem = if withOgre then "3" else "4";
 in stdenv.mkDerivation rec {
   pname = "mygui";
-  version = "3.2.2";
+  version = "3.4.0";
 
   src = fetchFromGitHub {
     owner = "MyGUI";
     repo = "mygui";
     rev = "MyGUI${version}";
-    sha256 = "1wk7jmwm55rhlqqcyvqsxdmwvl70bysl9azh4kd9n57qlmgk3zmw";
+    sha256 = "0a4zi8w18pjj813n7kmxldl1d9r1jp0iyhkw7pbqgl8f7qaq994w";
   };
 
   enableParallelBuilding = true;