diff --git a/pkgs/development/python-modules/oslo-serialization/default.nix b/pkgs/development/python-modules/oslo-serialization/default.nix
index 0e98efffd062..13e881408051 100644
--- a/pkgs/development/python-modules/oslo-serialization/default.nix
+++ b/pkgs/development/python-modules/oslo-serialization/default.nix
@@ -12,13 +12,13 @@
 
 buildPythonPackage rec {
   pname = "oslo-serialization";
-  version = "5.9.1";
+  version = "5.11.0";
   pyproject = true;
 
   src = fetchPypi {
     pname = "oslo_serialization";
     inherit version;
-    hash = "sha256-CGq3ihXzPwLmR72zyjZjJIDZTPZhzx+xGK3r3u5dS+c=";
+    hash = "sha256-gyboWoCFbBBoAHQj/Pb+Kd0v5Xoy9dh//wEgtVW0tnw=";
   };
 
   build-system = [