diff --git a/CHANGES.txt b/CHANGES.txt
index 056f4fc063949289761adca8677e89bd0e0d053f..7ede921ded955238e43db7c47b54cbc74260d02d 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,6 +1,10 @@
 Changes
 =======
 
+0.38 (Unreleased)
+-----------------
+ * No change yet.
+
 0.37 (2011-11-24)
 -----------------
 
diff --git a/setup.py b/setup.py
index 42d665188c361402cda3fc11efae55640da12e20..7bf0d1c01ae053c848885a723aca1bc89bcb75a3 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@ from setuptools import setup, find_packages
 import glob
 import os
 
-version = '0.37'
+version = '0.38-dev'
 name = 'slapos.cookbook'
 long_description = open("README.txt").read() + "\n" + \
     open("CHANGES.txt").read() + "\n"