diff --git a/setup.py b/setup.py
index 2eb997c..b5422f2 100644
--- a/setup.py
+++ b/setup.py
@@ -3,7 +3,7 @@
 from setuptools import setup
 
 
-version = '3.4.1'
+version = '3.4.2.dev0'
 
 setup(
     name='plone.app.linkintegrity',