diff --git a/pkgs/development/python-modules/bellows/default.nix b/pkgs/development/python-modules/bellows/default.nix
index d70fc9204241..bdda94a0f499 100644
--- a/pkgs/development/python-modules/bellows/default.nix
+++ b/pkgs/development/python-modules/bellows/default.nix
@@ -18,7 +18,7 @@
 
 buildPythonPackage rec {
   pname = "bellows";
-  version = "0.40.3";
+  version = "0.40.4";
   pyproject = true;
 
   disabled = pythonOlder "3.8";
@@ -27,7 +27,7 @@ buildPythonPackage rec {
     owner = "zigpy";
     repo = "bellows";
     rev = "refs/tags/${version}";
-    hash = "sha256-JGc5jDvEZtYyYAExRnN1K5hDY3ioS3+mm7jMrR0RyXk=";
+    hash = "sha256-9YReXaD4qmd2gzbGwzhslzT4K3ajCQrCN7TVl/6fOMU=";
   };
 
   postPatch = ''