diff --git a/cpp/CHANGELOG.md b/cpp/CHANGELOG.md
index c0b8c1a293ef09174d9799dc7411f85ccda49245..be8ddcb664bd05bf702512f4fb120ea6824ce8a6 100644
--- a/cpp/CHANGELOG.md
+++ b/cpp/CHANGELOG.md
@@ -8,6 +8,7 @@ Please mark all change in change log and use the ticket from JIRA.
 
 ## Improvement
 - MS-552 - Add and change the easylogging library
+- MS-553 - Refine cache code
 
 ## New Feature