diff --git a/pkgs/development/python-modules/pyomo/default.nix b/pkgs/development/python-modules/pyomo/default.nix
index a068b4a14072..e5c20f18dc9b 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 = "6.4.3";
+  version = "6.4.4";
   format = "setuptools";
 
   disabled = pythonOlder "3.7";
@@ -18,7 +18,7 @@ buildPythonPackage rec {
     repo = "pyomo";
     owner = "pyomo";
     rev = "refs/tags/${version}";
-    hash = "sha256-EHttGeQUI8SWo8R9zRchguvDA6U8EKhDbBf5jdwl4dI=";
+    hash = "sha256-FVpwJRCRlc537tJomB4Alxx8zJj8FpZp+LxB0f12rGE=";
   };
 
   propagatedBuildInputs = [