diff --git a/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/parentchild/ParentchildRelation.java b/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/parentchild/ParentchildRelation.java
index f72673ac..39a84dc2 100644
--- a/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/parentchild/ParentchildRelation.java
+++ b/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/parentchild/ParentchildRelation.java
@@ -3,6 +3,8 @@
 import lombok.AccessLevel;
 import lombok.Getter;
 import lombok.RequiredArgsConstructor;
+import sopt.org.umbba.common.exception.ErrorType;
+import sopt.org.umbba.common.exception.model.CustomException;
 import sopt.org.umbba.domain.domain.user.User;
 
 import java.util.List;
diff --git a/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/qna/dao/QnADao.java b/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/qna/dao/QnADao.java
index d24d65df..bb629199 100644
--- a/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/qna/dao/QnADao.java
+++ b/umbba-domain/src/main/java/sopt/org/umbba/domain/domain/qna/dao/QnADao.java
@@ -2,7 +2,7 @@
 
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.stereotype.Repository;
-import sopt.org.umbba.domain.qna.model.QnA;
+import sopt.org.umbba.domain.domain.qna.QnA;
 
 import javax.persistence.EntityManager;
 import javax.persistence.NoResultException;
diff --git a/umbba-external/build.gradle b/umbba-external/build.gradle
index 5ecee613..a35544e2 100644
--- a/umbba-external/build.gradle
+++ b/umbba-external/build.gradle
@@ -4,6 +4,9 @@ jar { enabled = true }
 dependencies {
     implementation project(":umbba-common")
 
+    // JSON
+    implementation group: 'io.jsonwebtoken', name: 'jjwt-jackson', version: '0.11.2'
+
     // Social Login
     implementation 'org.springframework.cloud:spring-cloud-starter-openfeign:3.1.7'
 
diff --git a/umbba-external/src/main/java/sopt/org/umbba/external/client/auth/kakao/response/KakaoUserProfile.java b/umbba-external/src/main/java/sopt/org/umbba/external/client/auth/kakao/response/KakaoUserProfile.java
index 570db947..5303e0ea 100644
--- a/umbba-external/src/main/java/sopt/org/umbba/external/client/auth/kakao/response/KakaoUserProfile.java
+++ b/umbba-external/src/main/java/sopt/org/umbba/external/client/auth/kakao/response/KakaoUserProfile.java
@@ -1,8 +1,9 @@
 package sopt.org.umbba.external.client.auth.kakao.response;
 
+import lombok.*;
+
 import com.fasterxml.jackson.databind.PropertyNamingStrategies;
 import com.fasterxml.jackson.databind.annotation.JsonNaming;
-import lombok.*;
 
 @ToString
 @Getter