diff --git a/pkgs/development/libraries/audio/libopenmpt/default.nix b/pkgs/development/libraries/audio/libopenmpt/default.nix
index 2cca0078aff..bd383ffe39c 100644
--- a/pkgs/development/libraries/audio/libopenmpt/default.nix
+++ b/pkgs/development/libraries/audio/libopenmpt/default.nix
@@ -16,13 +16,13 @@
 
 stdenv.mkDerivation rec {
   pname = "libopenmpt";
-  version = "0.6.3";
+  version = "0.6.4";
 
   outputs = [ "out" "dev" "bin" ];
 
   src = fetchurl {
     url = "https://lib.openmpt.org/files/libopenmpt/src/libopenmpt-${version}+release.autotools.tar.gz";
-    sha256 = "pBCv63zVlwsWuabOfazPSVsaXpEhqdZELeDAKP1Uols=";
+    sha256 = "4J+4RcMpJwCnrBPDsx1mns072+vL/hMo66I3bOvkAWI=";
   };
 
   enableParallelBuilding = true;