diff --git a/docs/readthedocs/source/conf.py b/docs/readthedocs/source/conf.py
index 9e69718d887..b5b7c260764 100644
--- a/docs/readthedocs/source/conf.py
+++ b/docs/readthedocs/source/conf.py
@@ -62,7 +62,7 @@
 html_logo = "../image/bigdl_logo.png"
 
 # hard code it for now, may change it to read from installed bigdl
-release = "latest"
+release = "v2.2.0"
 
 # The suffix of source filenames.
 from recommonmark.parser import CommonMarkParser