diff --git a/CHANGES.rst b/CHANGES.rst
index 5e25d3f..753231d 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -3,6 +3,12 @@
 Changelog
 =========
 
+0.6 (unreleased)
+----------------
+
+- Nothing changed yet.
+
+
 0.5 (2015-08-17)
 ----------------
 - Improve testing so that physical files are no longer needed.
diff --git a/setup.py b/setup.py
index 0ec77ac..19e1d22 100644
--- a/setup.py
+++ b/setup.py
@@ -14,7 +14,7 @@
 
 setup(
     name='flake8-plone-api',
-    version='0.5',
+    version='0.6.dev0',
     description=short_description,
     long_description=long_description,
     # Get more from http://pypi.python.org/pypi?%3Aaction=list_classifiers