diff --git a/nvchecker/__init__.py b/nvchecker/__init__.py
index 6fe84c8..3a63db9 100644
--- a/nvchecker/__init__.py
+++ b/nvchecker/__init__.py
@@ -1,4 +1,4 @@
 # MIT licensed
 # Copyright (c) 2013-2020 lilydjwg <lilydjwg@gmail.com>, et al.
 
-__version__ = '2.2'
+__version__ = '2.3dev'