diff --git a/CHANGES.txt b/CHANGES.txt
index 2b931b8..6eb4f3c 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,6 +1,12 @@
 Changelog
 =========
 
+2.1.6 (unreleased)
+------------------
+
+- Nothing changed yet.
+
+
 2.1.5 (2012-04-05)
 ------------------
 
diff --git a/setup.py b/setup.py
index e99633b..d9a7b91 100644
--- a/setup.py
+++ b/setup.py
@@ -1,6 +1,6 @@
 from setuptools import setup, find_packages
 
-version = '2.1.5'
+version = '2.1.6dev'
 
 install_requires = [
     'setuptools',