diff --git a/pkgs/by-name/jc/jc303/package.nix b/pkgs/by-name/jc/jc303/package.nix
index df589c158785..dcf70f41c871 100644
--- a/pkgs/by-name/jc/jc303/package.nix
+++ b/pkgs/by-name/jc/jc303/package.nix
@@ -82,13 +82,13 @@ let
 in
 stdenv.mkDerivation (finalAttrs: {
   pname = "jc303";
-  version = "0.12.3";
+  version = "0.13.0";
 
   src = fetchFromGitHub {
     owner = "midilab";
     repo = "jc303";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-5OA7ir8loT0Lx05guwuZNCW9J9I3TA5+A9JZ9E7oWXA=";
+    hash = "sha256-isU0EzSQNHRQ9nRURr/RR0yRWQddUB5Bb0cBSSBwR7w=";
   };
 
   patches = [