diff --git a/CHANGES.rst b/CHANGES.rst
index 58fbbfb..4d2305f 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -2,6 +2,12 @@
  Changes
 =========
 
+7.3 (unreleased)
+================
+
+- Nothing changed yet.
+
+
 7.2 (2024-12-19)
 ================
 
diff --git a/setup.py b/setup.py
index 0027ef4..be36161 100644
--- a/setup.py
+++ b/setup.py
@@ -42,7 +42,7 @@ def read(*rnames):
 
 setup(
     name='zope.publisher',
-    version='7.2',
+    version='7.3.dev0',
     url='https://github.com/zopefoundation/zope.publisher',
     license='ZPL 2.1',
     author='Zope Foundation and Contributors',