diff --git a/CHANGES.txt b/CHANGES.txt
index cc9ec820cdb0110a1cf2ec56c4cf5aa897b99d35..7c7a38458e224a4f4c423db31c427649ee1cfc25 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,6 +1,11 @@
 Changes
 =======
 
+0.46 (Unreleased)
+-----------------
+
+  * No change yet.
+
 0.45 (2012-03-29)
 -----------------
 
diff --git a/setup.py b/setup.py
index 3b56db1cf34173209e2a8c86659a75f90b10fd11..01af1693a53100b2275a3ed43c9db43abe5c9a0e 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@ from setuptools import setup, find_packages
 import glob
 import os
 
-version = '0.45'
+version = '0.46-dev'
 name = 'slapos.cookbook'
 long_description = open("README.txt").read() + "\n" + \
     open("CHANGES.txt").read() + "\n"