diff --git a/CHANGES.rst b/CHANGES.rst
index d74e309..74fcd88 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,6 +1,12 @@
 Changes
 =======
 
+3.2 (unreleased)
+----------------
+
+- Nothing changed yet.
+
+
 3.1 (2023-09-12)
 ----------------
 
diff --git a/setup.py b/setup.py
index 6968f46..969fe8b 100644
--- a/setup.py
+++ b/setup.py
@@ -8,7 +8,7 @@
 
 setup(
     name='zope.sqlalchemy',
-    version='3.1',
+    version='3.2.dev0',
     packages=find_packages('src'),
     package_dir={'': 'src'},
     include_package_data=True,