diff --git a/pkgs/development/python-modules/python-rtmidi/default.nix b/pkgs/development/python-modules/python-rtmidi/default.nix
index 34b2c1fd74e..a85d587c21c 100644
--- a/pkgs/development/python-modules/python-rtmidi/default.nix
+++ b/pkgs/development/python-modules/python-rtmidi/default.nix
@@ -4,12 +4,12 @@
 
 buildPythonPackage rec {
   pname = "python-rtmidi";
-  version = "1.4.2";
+  version = "1.4.3";
   disabled = isPy27;
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "3721ed3643f407cd96ad377cff0c2e28f2e8df0abbbe15a8a9668daae0b2b743";
+    sha256 = "7f4bbcd77431917503d6ae738093c8419ed67812d50883fa9cfefce1eb21eb3a";
   };
 
   nativeBuildInputs = [ pkg-config ];