diff --git a/public/info.html b/public/info.html
index a87c1f5f638ff8f653347a985443fe51995c43ea..abd481683021ef8243171ab082be7048fa7ca08c 100644
--- a/public/info.html
+++ b/public/info.html
@@ -14,9 +14,7 @@ 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/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>
 test2 ------
 </p>