diff --git a/appmode/__init__.py b/appmode/__init__.py
index 1f2c5bd..3f33ad2 100644
--- a/appmode/__init__.py
+++ b/appmode/__init__.py
@@ -1,6 +1,6 @@
 # -*- coding: utf-8 -*-
 
-__version__ = '0.3.0'
+__version__ = '0.4.0'
 
 # Jupyter Extension points
 def _jupyter_nbextension_paths():