diff --git a/pkgs/development/python-modules/graphql-subscription-manager/default.nix b/pkgs/development/python-modules/graphql-subscription-manager/default.nix
index 2ca6a134ee27..ab12d3500886 100644
--- a/pkgs/development/python-modules/graphql-subscription-manager/default.nix
+++ b/pkgs/development/python-modules/graphql-subscription-manager/default.nix
@@ -8,7 +8,7 @@
 
 buildPythonPackage rec {
   pname = "graphql-subscription-manager";
-  version = "0.5.5";
+  version = "0.5.6";
   format = "setuptools";
 
   disabled = pythonOlder "3.7";
@@ -17,7 +17,7 @@ buildPythonPackage rec {
     owner = "Danielhiversen";
     repo = "PyGraphqlWebsocketManager";
     rev = version;
-    hash = "sha256-7MqFsttMNnWmmWKj1zaOORBTDGt6Wm8GU7w56DfPl2c=";
+    hash = "sha256-nieKl25yDc3FHnMqwn6FNzWKd8sas3rTlBonYbJc1tg=";
   };
 
   propagatedBuildInputs = [