diff --git a/CHANGES.txt b/CHANGES.txt
index 9cefa8726f8cfeff1f0cf2cf9c7ea839e4905909..35f75aa602b6579a06ee92c8bbbdba6557957e01 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,6 +1,11 @@
 Changes
 =======
 
+0.55 (Unreleased)
+-----------------
+
+  * No change yet.
+
 0.54 (2012-06-18)
 -----------------
 
diff --git a/setup.py b/setup.py
index d12936f86ca3071aba543480d24a02105b91cecc..616780fdcf0660898a2c32e4c8f0bfbb855bb2a1 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@ from setuptools import setup, find_packages
 import glob
 import os
 
-version = '0.54'
+version = '0.55-dev'
 name = 'slapos.cookbook'
 long_description = open("README.txt").read() + "\n" + \
     open("CHANGES.txt").read() + "\n"