diff --git a/CHANGES.rst b/CHANGES.rst
index 0dd4621..df32ab1 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,6 +1,12 @@
 Changelog
 =========
 
+2.4.1 (unreleased)
+------------------
+
+- Nothing changed yet.
+
+
 2.4.0 (2015-03-12)
 ------------------
 
diff --git a/setup.py b/setup.py
index 5f2ad4d..df8502f 100644
--- a/setup.py
+++ b/setup.py
@@ -1,7 +1,7 @@
 from setuptools import find_packages
 from setuptools import setup
 
-version = '2.4.0'
+version = '2.4.1.dev0'
 
 install_requires = [
     'setuptools',