diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 28ec782..c85e555 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -3,6 +3,12 @@ Changelog
 
 This document describes changes between each past release.
 
+4.0.3 (unreleased)
+------------------
+
+- Nothing changed yet.
+
+
 4.0.2 (2023-11-30)
 ------------------
 
diff --git a/setup.py b/setup.py
index 54ef796..374924d 100644
--- a/setup.py
+++ b/setup.py
@@ -37,7 +37,7 @@ def read_file(filename):
 
 
 setup(name='kinto-wizard',
-      version='4.0.2',
+      version='4.0.3.dev0',
       description='kinto-wizard is a tool to configure a kinto server from an YAML file.',
       long_description=README + "\n\n" + CHANGELOG + "\n\n" + CONTRIBUTORS,
       license='Apache License (2.0)',