diff --git a/README.md b/README.md
index ab5e0d91e4c0f40b934b43f5608d758c10488e4d..f4be9f636b111b5c1cc7f86c5d82f3e11d73859b 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,7 @@
 
 * [lab4.1](./Documentations/4.1-ssa/)
   + DDL：2022-11-27 23:59:59 (UTC+8)
+  - [report](./Reports/4.1-ssa/report.md)  
 
 ## FAQ: How to merge upstream remote branches