diff --git a/pkgs/development/python-modules/pyomo/default.nix b/pkgs/development/python-modules/pyomo/default.nix
index 23283ab2f5a8..a068b4a14072 100644
--- a/pkgs/development/python-modules/pyomo/default.nix
+++ b/pkgs/development/python-modules/pyomo/default.nix
@@ -9,7 +9,7 @@
 
 buildPythonPackage rec {
   pname = "pyomo";
-  version = "6.4.2";
+  version = "6.4.3";
   format = "setuptools";
 
   disabled = pythonOlder "3.7";
@@ -18,7 +18,7 @@ buildPythonPackage rec {
     repo = "pyomo";
     owner = "pyomo";
     rev = "refs/tags/${version}";
-    hash = "sha256-YTcK5UCE6AuGk3iyhLOeqdl0rb8ccOhBRJEew40Rris=";
+    hash = "sha256-EHttGeQUI8SWo8R9zRchguvDA6U8EKhDbBf5jdwl4dI=";
   };
 
   propagatedBuildInputs = [
@@ -54,6 +54,7 @@ buildPythonPackage rec {
   meta = with lib; {
     description = "Python Optimization Modeling Objects";
     homepage = "http://pyomo.org";
+    changelog = "https://github.com/Pyomo/pyomo/releases/tag/${version}";
     license = licenses.bsd3;
     maintainers = with maintainers; [ costrouc ];
   };