diff --git a/CHANGES.rst b/CHANGES.rst
index af73d6b..0d6c549 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,6 +1,12 @@
 Changes
 =======
 
+2.1 (unreleased)
+----------------
+
+- Nothing changed yet.
+
+
 2.0 (2023-05-04)
 ----------------
 
diff --git a/setup.py b/setup.py
index 0c88f04..7bf59c9 100644
--- a/setup.py
+++ b/setup.py
@@ -4,7 +4,7 @@
 
 setup(
     name='z3c.jbot',
-    version='2.0',
+    version='2.1.dev0',
     description="Drop-in template overrides.",
     long_description=(open('README.rst').read() + "\n" +
                       open('CHANGES.rst').read()),