diff --git a/CHANGES.rst b/CHANGES.rst
index 167484c2..62bc7221 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -23,6 +23,12 @@ Changelog
   [loechel]
 
 
+3.0.0a2 (unreleased)
+--------------------
+
+- Nothing changed yet.
+
+
 3.0.0a1 (2017-09-26)
 --------------------
 
diff --git a/setup.py b/setup.py
index 96c82f83..c717225a 100644
--- a/setup.py
+++ b/setup.py
@@ -4,7 +4,7 @@
 from setuptools import setup
 
 
-version = '3.0.0a1'
+version = '3.0.0a2.dev0'
 
 
 long_description = '\n\n'.join([