diff --git a/src/wireviz/__init__.py b/src/wireviz/__init__.py
index fcc7f3b..178fbf1 100644
--- a/src/wireviz/__init__.py
+++ b/src/wireviz/__init__.py
@@ -1,7 +1,7 @@
 # -*- coding: utf-8 -*-
 # Please don't import anything in this file to avoid issues when it is imported in setup.py
 
-__version__ = '0.3'
+__version__ = '0.4-dev'
 
 CMD_NAME = 'wireviz'  # Lower case command and module name
 APP_NAME = 'WireViz'  # Application name in texts meant to be human readable