diff --git a/docs/source/conf.py b/docs/source/conf.py
index 6208a46..603dc7c 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -22,7 +22,7 @@ copyright = '2022, imacat'
 author = 'imacat'
 
 # The full version, including alpha/beta/rc tags
-release = '0.2.1'
+release = '0.2.2'
 
 
 # -- General configuration ---------------------------------------------------