diff --git a/pkgs/tools/audio/abcmidi/default.nix b/pkgs/tools/audio/abcmidi/default.nix
index 4ab394516a84..e33ff98587bf 100644
--- a/pkgs/tools/audio/abcmidi/default.nix
+++ b/pkgs/tools/audio/abcmidi/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   pname = "abcMIDI";
-  version = "2020.08.09";
+  version = "2020.11.07";
 
   src = fetchzip {
     url = "https://ifdo.ca/~seymour/runabc/${pname}-${version}.zip";
-    sha256 = "1j7jkv2fdrhyyjavffb5nrs8p9mfp8zqqravcad1ayv1z2wxr8vl";
+    sha256 = "0zwzgqy1wa7yd2cm6spq11lw21mdn92lx8qzrxpk9kxcl03mv5jd";
   };
 
   # There is also a file called "makefile" which seems to be preferred by the standard build phase