diff --git a/pkgs/development/python-modules/zope_copy/default.nix b/pkgs/development/python-modules/zope_copy/default.nix
index be4cdca72b65..ce9595ad537d 100644
--- a/pkgs/development/python-modules/zope_copy/default.nix
+++ b/pkgs/development/python-modules/zope_copy/default.nix
@@ -11,11 +11,11 @@
 
 buildPythonPackage rec {
   pname = "zope.copy";
-  version = "4.2";
+  version = "4.3";
 
   src = fetchPypi {
     inherit pname version;
-    sha256 = "47bb9d09ff06c600b446f220f47a742396598ac4828d738d3d85e6490629a71a";
+    sha256 = "sha256-epg2yjqX9m1WGzYPeGUBKGif4JNAddzg75ECe9xPOlc=";
   };
 
   propagatedBuildInputs = [ zope_interface ];