diff --git a/src/main/java/sevenstar/marineleisure/member/service/OauthService.java b/src/main/java/sevenstar/marineleisure/member/service/OauthService.java
index 82dfe80c..bd3d3b57 100644
--- a/src/main/java/sevenstar/marineleisure/member/service/OauthService.java
+++ b/src/main/java/sevenstar/marineleisure/member/service/OauthService.java
@@ -18,7 +18,6 @@
 import com.github.benmanes.caffeine.cache.Cache;
 import com.github.benmanes.caffeine.cache.Caffeine;
 
-import ch.qos.logback.core.joran.action.ParamAction;
 import jakarta.servlet.http.HttpServletRequest;
 import jakarta.transaction.Transactional;
 import lombok.RequiredArgsConstructor;
@@ -45,6 +44,9 @@ public class OauthService {
 	@Value("${kakao.login.client_secret}")
 	private String clientSecret;
 
+	@Value("${kakao.login.admin_key}")
+	private String adminKey;
+
 	@Value("${kakao.login.uri.base}")
 	private String kakaoBaseUri;
 
@@ -234,7 +236,7 @@ public Long unlinkKakaoAccount(String providerId) {
 
 		Map<String, Object> response = webClient.post()
 			.uri(unlinkUrl)
-			.header("Authorization", "KakaoAK " + clientSecret)
+			.header("Authorization", "KakaoAK " + adminKey)
 			.header("Content-Type", "application/x-www-form-urlencoded;charset=utf-8")
 			.body(BodyInserters.fromFormData(params))
 			.retrieve()
diff --git a/src/main/resources/application-prod.yml b/src/main/resources/application-prod.yml
index 128dc48d..84d2f4bc 100644
--- a/src/main/resources/application-prod.yml
+++ b/src/main/resources/application-prod.yml
@@ -61,6 +61,7 @@ kakao:
   login:
     api_key: ${KAKAO_API_KEY}
     client_secret: ${KAKAO_CLIENT_SECRET}
+    admin_key: ${KAKAO_ADMIN_KEY}
     redirect_uri: ${KAKAO_REDIRECT_URI}
 
     uri: