diff --git a/ChangeLog b/ChangeLog
index 52d0c77..1a4130b 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -4,6 +4,7 @@
 	script.
 	* BUGFIX: update redis-go-clister driver to remove the error when meets
 	nil bluk string.
+	* IMPROVE: add keep_alive in cluster connection.
 2019-11-25 Alibaba Cloud.
 	* VERSION: 1.6.22
 	* BUGFIX: solve MOVED error when key is unicode encoding which is not