diff --git a/OJ notes/pages/Leetcode 01-Matrix.md b/OJ notes/pages/Leetcode 01-Matrix.md
index c29b77b..6f497f4 100644
--- a/OJ notes/pages/Leetcode 01-Matrix.md	
+++ b/OJ notes/pages/Leetcode 01-Matrix.md	
@@ -20,7 +20,7 @@
 >
 > ##### Revisions:
 >
-> N/A
+> 2022-09-20
 
 ##### Related topics: