diff --git a/src/main/java/com/book/backend/domain/message/repository/MessageRepository.java b/src/main/java/com/book/backend/domain/message/repository/MessageRepository.java
index 54883d6a..34e693c0 100644
--- a/src/main/java/com/book/backend/domain/message/repository/MessageRepository.java
+++ b/src/main/java/com/book/backend/domain/message/repository/MessageRepository.java
@@ -12,6 +12,7 @@
 @Repository
 public interface MessageRepository extends JpaRepository<Message, Long> {
     List<Message> findTop200ByOrderByCreatedAtDesc();
+    List<Message> findTop50ByOrderByCreatedAtDesc();
 
     // 특정 opentalk Id 를 갖는 데이터 조회 (페이지네이션)
     Page<Message> findAllByOpentalk(Opentalk opentalk, Pageable pageable);
diff --git a/src/main/java/com/book/backend/domain/opentalk/service/OpentalkService.java b/src/main/java/com/book/backend/domain/opentalk/service/OpentalkService.java
index 2ee43e2d..bd077160 100644
--- a/src/main/java/com/book/backend/domain/opentalk/service/OpentalkService.java
+++ b/src/main/java/com/book/backend/domain/opentalk/service/OpentalkService.java
@@ -49,7 +49,7 @@ public class OpentalkService {
     /* message 테이블에서 최근 200개 데이터 조회 -> opentalkId 기준으로 count 해서 가장 빈번하게 나오는 top 5 id 반환*/
     public List<Long> getHotOpentalkIds() {
         log.trace("OpentalkService > hotOpentalk()");
-        List<Message> recent200Messages = messageRepository.findTop200ByOrderByCreatedAtDesc();
+        List<Message> recent200Messages = messageRepository.findTop50ByOrderByCreatedAtDesc();
 
         // (key : opentalk_id, value : 출현빈도)
         Map<Long, Long> opentalkIdCountMap = recent200Messages.stream().collect(