diff --git a/books/free-programming-books-bn.md b/books/free-programming-books-bn.md
index 5222716a4..0bda06310 100644
--- a/books/free-programming-books-bn.md
+++ b/books/free-programming-books-bn.md
@@ -43,7 +43,7 @@
 
 ### Misc
 
-* [SL3 Framework - Code For Brain](https://sl3.app) - Stack Learners
+* [SL3 Framework - Code For Brain](https://web.archive.org/web/20201024204437/https://sl3.app) - Stack Learners *(:card_file_box: archived)*
 * [ডেভসংকেত: বাংলা চিটশিটের ভান্ডার](https://devsonket.com) - Devsonket Team