diff --git a/pkgs/development/python-modules/zope_interface/default.nix b/pkgs/development/python-modules/zope_interface/default.nix
index 77075c36b22..a5855697ad6 100644
--- a/pkgs/development/python-modules/zope_interface/default.nix
+++ b/pkgs/development/python-modules/zope_interface/default.nix
@@ -6,11 +6,11 @@
 
 buildPythonPackage rec {
   pname = "zope.interface";
-  version = "4.5.0";
+  version = "4.6.0";
   
   src = fetchPypi {
     inherit pname version;
-    sha256 = "57c38470d9f57e37afb460c399eb254e7193ac7fb8042bd09bdc001981a9c74c";
+    sha256 = "1b3d0dcabc7c90b470e59e38a9acaa361be43b3a6ea644c0063951964717f0e5";
   };
 
   propagatedBuildInputs = [ zope_event ];