diff --git a/pkgs/development/python-modules/bellows/default.nix b/pkgs/development/python-modules/bellows/default.nix
index e75685b74768..cbfea2399312 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 = "0.40.6";
+  version = "0.42.0";
   pyproject = true;
 
   disabled = pythonOlder "3.8";
@@ -27,7 +27,7 @@ buildPythonPackage rec {
     owner = "zigpy";
     repo = "bellows";
     rev = "refs/tags/${version}";
-    hash = "sha256-c0ebEulI1wY/ws6eqgkMQbprq5bzv+hJW0WDPkW/sys=";
+    hash = "sha256-knWCCshsFvnMXknzpzYLCqb/ADB1Vl4RH5PBbxD5WgE=";
   };
 
   postPatch = ''