diff --git a/pkgs/tools/audio/abcmidi/default.nix b/pkgs/tools/audio/abcmidi/default.nix
index 7af507c35be..ab06a3b6983 100644
--- a/pkgs/tools/audio/abcmidi/default.nix
+++ b/pkgs/tools/audio/abcmidi/default.nix
@@ -2,11 +2,11 @@
 
 stdenv.mkDerivation rec {
   name = "abcMIDI-${version}";
-  version = "2018.03.08";
+  version = "2018.03.21";
 
   src = fetchzip {
     url = "http://ifdo.ca/~seymour/runabc/${name}.zip";
-    sha256 = "0pdia3n23l4nhc4lmyphgh6swq35nnzqk2z4ykif1xajbkbddxm3";
+    sha256 = "0h34bjs5p3vkabg6c1dpwrwfxypki0xyd0m6jf4ys7xbs9qnal6l";
   };
 
   # There is also a file called "makefile" which seems to be preferred by the standard build phase