diff --git a/docs/source/conf.py b/docs/source/conf.py
index ad4db2d5..a1c34078 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -43,7 +43,7 @@
 author = 'PaddlePaddle'
 
 # The full version, including alpha/beta/rc tags
-release = '2.2.4'
+release = '2.2.6'
 
 # -- General configuration ---------------------------------------------------