diff --git a/pkgs/development/python-modules/u-msgpack-python/default.nix b/pkgs/development/python-modules/u-msgpack-python/default.nix
index 144f9299c6eb..8fd8eaf8329d 100644
--- a/pkgs/development/python-modules/u-msgpack-python/default.nix
+++ b/pkgs/development/python-modules/u-msgpack-python/default.nix
@@ -7,11 +7,11 @@
 
 buildPythonPackage rec {
   pname = "u-msgpack-python";
-  version = "2.5.1";
+  version = "2.5.2";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "6c02a0654a5e11f8fad532ed634109ed49cdc929f7b972848773e4e0ce52f30c";
+    sha256 = "09c85a8af77376034396681e76bf30c249a4fd8e5ebb239f8a468d3655f210d0";
   };
 
   LC_ALL="en_US.UTF-8";