diff --git a/CHANGES.rst b/CHANGES.rst
index 4082243..cd81447 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -2,6 +2,12 @@
 Changelog
 =========
 
+3.9.2 (unreleased)
+------------------
+
+- Nothing changed yet.
+
+
 3.9.1 (2015-09-08)
 ------------------
 
diff --git a/setup.py b/setup.py
index 16b859d..3e6d85e 100644
--- a/setup.py
+++ b/setup.py
@@ -3,7 +3,7 @@ import setuptools
 import sys
 
 
-version = '3.9.1'
+version = '3.9.2.dev0'
 shortdesc = 'iCalendar parser/generator'
 longdesc = codecs.open('README.rst', encoding='utf-8').read()
 longdesc += codecs.open('CHANGES.rst', encoding='utf-8').read()