diff --git a/Changelist.md b/Changelist.md
index f950d85b..f5248c33 100644
--- a/Changelist.md
+++ b/Changelist.md
@@ -1,5 +1,5 @@
 
-# v2.4.20 2021.05.18
+# v2.4.20 2021.07.27
 ### en
 - application add addServantWithParams support parameter for handle
 - remove message.h opentracking define