diff --git a/CHANGELOG b/CHANGELOG
index f70e52a4c..b517d6a37 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,6 @@
+2020-09-29 Version: patch
+- Add API OpenOnsService which can active ons service.
+
 2020-09-29 Version: patch
 - Update CalcCACS.