diff --git a/yamllint/__init__.py b/yamllint/__init__.py
index fde9a76d..65c73d34 100644
--- a/yamllint/__init__.py
+++ b/yamllint/__init__.py
@@ -22,7 +22,7 @@
 
 
 APP_NAME = 'yamllint'
-APP_VERSION = '0.3.0'
+APP_VERSION = '0.4.0'
 APP_DESCRIPTION = 'A linter for YAML files.'
 
 __author__ = 'Adrien Vergé'