diff --git a/pkgs/development/python-modules/zdaemon/default.nix b/pkgs/development/python-modules/zdaemon/default.nix
index 58b4fccde1e7..5501429c8367 100644
--- a/pkgs/development/python-modules/zdaemon/default.nix
+++ b/pkgs/development/python-modules/zdaemon/default.nix
@@ -11,12 +11,12 @@
 
 buildPythonPackage rec {
   pname = "zdaemon";
-  version = "5.1";
+  version = "5.2.1";
   pyproject = true;
 
   src = fetchPypi {
     inherit pname version;
-    hash = "sha256-Iun+UFDq67ngPZrWTk9jzNheBMOP2zUc8RO+9vaNt6Q=";
+    hash = "sha256-8GwsfK9RnHYINPj+JuVzWVDVAX9y1cII3IsZABQFlM0=";
   };
 
   build-system = [ setuptools ];