diff --git a/jsoncfg/__init__.py b/jsoncfg/__init__.py
index <HASH>..<HASH> 100644
--- a/jsoncfg/__init__.py
+++ b/jsoncfg/__init__.py
@@ -40,7 +40,7 @@ __all__ = [
 #                  case increase only version_info[2].
 # version_info[2]: Increase in case of bugfixes. Also use this if you added new features
 #                  without modifying the behavior of the previously existing ones.
-version_info = (0, 3, 4)
+version_info = (0, 4, 0)
 __version__ = '.'.join(str(n) for n in version_info)
 __author__ = 'István Pásztor'
 __license__ = 'MIT'
bumping version to <I>