diff --git a/docs/CHANGES.rst b/docs/CHANGES.rst
index 5345818..a4e5def 100644
--- a/docs/CHANGES.rst
+++ b/docs/CHANGES.rst
@@ -1,6 +1,12 @@
 Changelog
 ==============
 
+0.3.12 (unreleased)
+-------------------
+
+- Nothing changed yet.
+
+
 0.3.11 (2016-01-13)
 -------------------
 
diff --git a/setup.py b/setup.py
index 344e9c7..1e0e308 100644
--- a/setup.py
+++ b/setup.py
@@ -17,7 +17,7 @@ long_description = "\n\n".join(
 
 setup(
     name='croniter',
-    version='0.3.11',
+    version='0.3.12.dev0',
     py_modules=['croniter', ],
     description=(
         'croniter provides iteration for datetime '