diff --git a/CHANGES.rst b/CHANGES.rst
index 21f3a4af..31355bbd 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -2,12 +2,17 @@
  Changes
 =========
 
+7.1.2 (unreleased)
+==================
+
+
 7.1.1 (2024-10-23)
 ==================
 
 - Fix segmentation faults in `weakrefobject.c` on Python 3.12 and 3.13.
   (`#323 <https://github.com/zopefoundation/zope.interface/issues/323>`_)
 
+
 7.1.0 (2024-10-10)
 ==================
 
diff --git a/setup.py b/setup.py
index 52eedd0d..c4f981e1 100644
--- a/setup.py
+++ b/setup.py
@@ -31,7 +31,7 @@
 from setuptools.command.build_ext import build_ext
 
 
-version = '7.1.1'
+version = '7.1.2.dev0'
 
 
 class optional_build_ext(build_ext):