diff --git a/src/main/java/com/loafle/overflow/service/central/member/MemberService.java b/src/main/java/com/loafle/overflow/service/central/member/MemberService.java
index 75bd504..3063cdc 100644
--- a/src/main/java/com/loafle/overflow/service/central/member/MemberService.java
+++ b/src/main/java/com/loafle/overflow/service/central/member/MemberService.java
@@ -2,7 +2,6 @@ package com.loafle.overflow.service.central.member;
 
 import com.loafle.overflow.core.annotation.WebappAPI;
 import com.loafle.overflow.core.exception.OverflowException;
-import com.loafle.overflow.model.domain.Domain;
 import com.loafle.overflow.model.domain.DomainMember;
 import com.loafle.overflow.model.member.Member;
 
@@ -27,13 +26,11 @@ public interface MemberService {
     @WebappAPI
     Member read(Long memberId) throws OverflowException;
     @WebappAPI
-    void withdrawal(Member member) throws OverflowException;
+    void withdrawal(Long memberId) throws OverflowException;
     @WebappAPI
     List<Member> readAllByProbeKey(String probeKey) throws OverflowException;
     @WebappAPI
     List<Member> readAllByApiKey(String apikey) throws OverflowException;
     @WebappAPI
-    List<Member> readAllByDomain(Domain domain) throws OverflowException;
-    @WebappAPI
     List<Member> readAllByDomainID(final Long domainID) throws OverflowException;
 }