diff --git a/pkgs/development/python-modules/zdaemon/default.nix b/pkgs/development/python-modules/zdaemon/default.nix
index 1a7627bf5dd9..c15e46e5d0d8 100644
--- a/pkgs/development/python-modules/zdaemon/default.nix
+++ b/pkgs/development/python-modules/zdaemon/default.nix
@@ -6,11 +6,11 @@
 
 buildPythonPackage rec {
   pname = "zdaemon";
-  version = "4.0.0";
+  version = "4.3";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "82d7eaa4d831ff1ecdcffcb274f3457e095c0cc86e630bc72009a863c341ab9f";
+    sha256 = "f249fc6885646d165d7d6b228a7b71f5170fc7117de9e0688271f8fb97840f72";
   };
 
   propagatedBuildInputs = [ zconfig ];