diff --git a/CHANGES.rst b/CHANGES.rst
index 905f5492..cfb933f3 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -2,6 +2,22 @@ Changelog
 =========
 
 
+3.4.1 (unreleased)
+------------------
+
+Breaking changes:
+
+- *add item here*
+
+New features:
+
+- *add item here*
+
+Bug fixes:
+
+- *add item here*
+
+
 3.4 (2017-04-01)
 ----------------
 
diff --git a/setup.py b/setup.py
index eb14f957..855ed8db 100644
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@
 from setuptools import find_packages
 from setuptools import setup
 
-version = '3.4'
+version = '3.4.1.dev0'
 
 setup(
     name='plone.app.content',