diff --git a/CHANGES.rst b/CHANGES.rst
index 7dfa561..20f913f 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -2,6 +2,12 @@ Changelog
 =========
 
 
+1.0 (unreleased)
+----------------
+
+- Nothing changed yet.
+
+
 1.0rc1 (2013-03-27)
 -------------------
 
diff --git a/setup.py b/setup.py
index 2994f54..895ab49 100644
--- a/setup.py
+++ b/setup.py
@@ -19,7 +19,7 @@ long_description = (
 
 setup(
     name='collective.contact.widget',
-    version='1.0rc1',
+    version='1.0.dev0',
     description="Contact widget",
     long_description=long_description,
     # Get more from http://pypi.python.org/pypi?%3Aaction=list_classifiers