diff --git a/pkgs/development/libraries/wildmidi/default.nix b/pkgs/development/libraries/wildmidi/default.nix
index 06a4e48827ed..3b0a447f7376 100644
--- a/pkgs/development/libraries/wildmidi/default.nix
+++ b/pkgs/development/libraries/wildmidi/default.nix
@@ -1,11 +1,11 @@
 { stdenv, fetchurl, cmake, alsaLib, freepats }:
 
 stdenv.mkDerivation rec {
-  name = "wildmidi-0.4.2";
+  name = "wildmidi-0.4.3";
 
   src = fetchurl {
     url = "https://github.com/Mindwerks/wildmidi/archive/${name}.tar.gz";
-    sha256 = "178hm2wh5h7apkcb1a0dyla2ia8569php8ikz62rh0g6dp5l67am";
+    sha256 = "1igkxv4axnqap59d8pjgqj94x0khn3fdd2hq6wdvkd2v8nb5m3j9";
   };
 
   nativeBuildInputs = [ cmake ];