diff --git a/stack/erp5.cfg b/stack/erp5.cfg
index 51383ef51c1555b600f1152c38ebd4b478535658..c2f4040fb65d0a505317086ff7f8918c3d8a685b 100644
--- a/stack/erp5.cfg
+++ b/stack/erp5.cfg
@@ -33,7 +33,7 @@ allow-hosts =
 
 extends =
 # Exact version of Zope
-  http://svn.zope.org/repos/main/Zope/tags/2.12.22/versions.cfg
+  http://svn.zope.org/repos/main/Zope/tags/2.12.23/versions.cfg
   ../component/logrotate/buildout.cfg
   ../component/dcron/buildout.cfg
   ../component/file/buildout.cfg