diff --git a/nvchecker/__init__.py b/nvchecker/__init__.py
index 2b81639..71a25fa 100644
--- a/nvchecker/__init__.py
+++ b/nvchecker/__init__.py
@@ -1,4 +1,4 @@
 # MIT licensed
 # Copyright (c) 2013-2022 lilydjwg <lilydjwg@gmail.com>, et al.
 
-__version__ = '2.9'
+__version__ = '2.10dev'