diff --git a/src/main/java/com/example/umcCall/domain/chat/entity/ChatRoom.java b/src/main/java/com/example/umcCall/domain/chat/entity/ChatRoom.java
index ae5767b..704e8f8 100644
--- a/src/main/java/com/example/umcCall/domain/chat/entity/ChatRoom.java
+++ b/src/main/java/com/example/umcCall/domain/chat/entity/ChatRoom.java
@@ -82,10 +82,6 @@ public void archive() {
         this.deleted = true;
     }
 
-
-    public void touch(LocalDateTime messageAt) {
-        this.lastMessageAt = messageAt;
-
     /** 음소거 여부를 요청받은 값으로 */
     public void updateMuted(boolean muted) {
         this.muted = muted;
diff --git a/src/main/java/com/example/umcCall/domain/proactive/service/ProactiveContactProcessor.java b/src/main/java/com/example/umcCall/domain/proactive/service/ProactiveContactProcessor.java
index ddacdfa..a357643 100644
--- a/src/main/java/com/example/umcCall/domain/proactive/service/ProactiveContactProcessor.java
+++ b/src/main/java/com/example/umcCall/domain/proactive/service/ProactiveContactProcessor.java
@@ -205,7 +205,7 @@ public void complete(Claim claim, String reply, LocalDateTime now) {
                     .chatRoom(room)
                     .proactiveRequestId(claim.requestId())
                     .build());
-            room.touch(now);
+            room.updateLastMessageAt(now);
         }
 
         CharacterAiProfile profile = profileRepository.findById(relationship.getCharacter().getId()).orElseThrow();