diff --git a/src/main/java/jungle/HandTris/application/impl/MemberConnectionServiceImpl.java b/src/main/java/jungle/HandTris/application/impl/MemberConnectionServiceImpl.java
index ef5b369..140bd8f 100644
--- a/src/main/java/jungle/HandTris/application/impl/MemberConnectionServiceImpl.java
+++ b/src/main/java/jungle/HandTris/application/impl/MemberConnectionServiceImpl.java
@@ -1,10 +1,16 @@
 package jungle.HandTris.application.impl;
 
 import jungle.HandTris.application.service.MemberConnectionService;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 
 import java.util.Set;
 import java.util.concurrent.ConcurrentHashMap;
 
+@Service
+@RequiredArgsConstructor
+@Transactional
 public class MemberConnectionServiceImpl implements MemberConnectionService {
 
     private Set<String> connectedMembers = ConcurrentHashMap.newKeySet();
@@ -15,7 +21,8 @@ public void addUser(String sessionId) {
     }
 
     @Override
-    public void removeUser(String sessionId) {
+    public void
+    removeUser(String sessionId) {
         connectedMembers.remove(sessionId);
     }