diff --git a/build.gradle b/build.gradle
index 32e7a50..3cb77c3 100644
--- a/build.gradle
+++ b/build.gradle
@@ -51,6 +51,9 @@ dependencies {
     implementation 'mysql:mysql-connector-java:8.0.32'
     runtimeOnly 'com.mysql:mysql-connector-j'
 
+    //jpa
+    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
+
 
     implementation 'org.webjars.bower:bootstrap:4.3.1'
     implementation 'org.webjars.bower:vue:2.5.16'
diff --git a/src/main/java/com/catchroom/chat/chatroom/entity/ChatRoom.java b/src/main/java/com/catchroom/chat/chatroom/entity/ChatRoom.java
index a69e62e..a429994 100644
--- a/src/main/java/com/catchroom/chat/chatroom/entity/ChatRoom.java
+++ b/src/main/java/com/catchroom/chat/chatroom/entity/ChatRoom.java
@@ -1,11 +1,15 @@
 package com.catchroom.chat.chatroom.entity;
 
-import jakarta.persistence.*;
+import jakarta.persistence.Entity;
+import jakarta.persistence.GeneratedValue;
+import jakarta.persistence.GenerationType;
+import jakarta.persistence.Id;
 import lombok.AllArgsConstructor;
 import lombok.Builder;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 
+import java.io.Serializable;
 import java.util.UUID;
 
 @Entity
@@ -13,7 +17,7 @@
 @AllArgsConstructor
 @NoArgsConstructor
 @Builder
-public class ChatRoom {
+public class ChatRoom implements Serializable {
 
     @Id
     @GeneratedValue(strategy = GenerationType.IDENTITY)