diff --git a/pkgs/applications/audio/x42-gmsynth/default.nix b/pkgs/applications/audio/x42-gmsynth/default.nix
index 90db8754ca2f..8f83263d0a00 100644
--- a/pkgs/applications/audio/x42-gmsynth/default.nix
+++ b/pkgs/applications/audio/x42-gmsynth/default.nix
@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "x42-gmsynth";
-  version = "0.4.1";
+  version = "0.6.0";
 
   src = fetchFromGitHub {
     owner = "x42";
     repo = "gmsynth.lv2";
     rev = "v${version}";
-    sha256 = "08dvdj8r17sfl6l18g2b8abgls2irkbrq5vhrfai01hp2m0rlm34";
+    hash = "sha256-onZoaQVAGH/1d7jBRlN3ucx/3mTGUCxjvvt19GyprsY=";
   };
 
   nativeBuildInputs = [ pkg-config ];