diff --git a/pkgs/applications/audio/seq66/default.nix b/pkgs/applications/audio/seq66/default.nix
index 51d40f962a88..898373cb1320 100644
--- a/pkgs/applications/audio/seq66/default.nix
+++ b/pkgs/applications/audio/seq66/default.nix
@@ -4,13 +4,13 @@
 
 stdenv.mkDerivation rec {
   pname = "seq66";
-  version = "0.99.12";
+  version = "0.99.13";
 
   src = fetchFromGitHub {
     owner = "ahlstromcj";
     repo = "seq66";
     rev = version;
-    hash = "sha256-+EU0UdmZaDnhN142yR/r0tK1FKBbuFPmde6iSS26Tjo=";
+    hash = "sha256-hR8kEt3tKnH96JmmkMuY0WWxxp9YTcSvsJvICKNjvyQ=";
   };
 
   nativeBuildInputs = [ autoreconfHook pkg-config qttools which wrapQtAppsHook ];