diff --git a/CHANGES.rst b/CHANGES.rst
index 240769d..511f915 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,6 +1,12 @@
 Changes
 =======
 
+2.0.1 (unreleased)
+------------------
+
+- Nothing changed yet.
+
+
 2.0.0 (2019-11-25)
 ------------------
 
diff --git a/setup.py b/setup.py
index dadff55..55c33b4 100644
--- a/setup.py
+++ b/setup.py
@@ -3,7 +3,7 @@
 from setuptools import find_packages
 from setuptools import setup
 
-version = '2.0.0'
+version = '2.0.1.dev0'
 
 
 def read(*pathnames):