diff --git a/pkgs/by-name/mm/MMA/package.nix b/pkgs/by-name/mm/MMA/package.nix
index b5e52bd42332..b3e83c1e1d37 100644
--- a/pkgs/by-name/mm/MMA/package.nix
+++ b/pkgs/by-name/mm/MMA/package.nix
@@ -9,12 +9,12 @@
 }:
 
 stdenv.mkDerivation rec {
-  version = "21.09";
+  version = "25.05.0";
   pname = "mma";
 
   src = fetchurl {
     url = "https://www.mellowood.ca/mma/mma-bin-${version}.tar.gz";
-    sha256 = "sha256-5YzdaZ499AGiKAPUsgBCj3AQ9s0WlfgAbHhOQSOLLO8=";
+    sha256 = "sha256-J72uTwAlWa/dRPf7/lO1epbmjTQar+3/U//+IJ9u4PM=";
   };
 
   nativeBuildInputs = [ makeWrapper ];