diff --git a/CHANGELOG.md b/CHANGELOG.md
index 889ed4d44..8cb17b49e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,6 +1,8 @@
 ## (UNRELEASED)
 
 ### IMPROVEMENTS:
+* builder/alicloud-ecs: Add security token support and set tls handshake timeout 
+  through environment variable. [GH-5641]
 
 ### BUG FIXES: