diff --git a/public/info.html b/public/info.html
index 99a4958c667a0466d60dcefe1b066f36e1feeb8b..35d3f1e99576c647dffedf6d7c71fc7faf903954 100644
--- a/public/info.html
+++ b/public/info.html
@@ -14,9 +14,10 @@ Work email : hwan@ajou.ac.kr </br>
 Personal email : hwanyong.lee@gmail.com </br>
 <p> 
 <a href="https://calendar.google.com/calendar/u/0?cid=Y184OTFhNmRhYzA1Yzg1ZjI2MGRmYTdiMmZlNjAwNWNmMGQ2OGU2NDUxY2E3ZTE4NzQ1NTQ1MGIzMjk5M2E3ZTAyQGdyb3VwLmNhbGVuZGFyLmdvb2dsZS5jb20"> Hwanyong Lee's schedule </a></br>
-<a href="https://open.kakao.com/o/gZHTgjbg"> 2024-1학기 오픈소스소프트웨어개론 교과목 단톡방 </a> </br>
-<a href="https://open.kakao.com/o/gm9Bjjbg"> 2024-1학기 자주연,자주프,파란학기 교과목 단톡방 </a> </br>
-test message - 12 13 14
+<a href="https://open.kakao.com/o/gGEY3AMg"> 2024-2학기 FOSS 수강생 단톡방 </a> </br>
+<a href="https://open.kakao.com/o/gcHKOHMg"> 2024-2학기 HCI 수강생 단톡방방 </a> </br>
+<a href="https://open.kakao.com/o/gCqa0HMg"> 2024-2학기 Computational Thinking 수강생 단톡방방 </a> </br>
+<a href="https://drive.google.com/drive/folders/1kPlsH-UUxesKonNH6vxenneVn3EDFg1U?usp=sharing"> 2024-2 학기 강의 녹화 저장 </a></br>
 </p>
 </body>
 </html>