diff --git a/ontime-back/Dockerfile b/ontime-back/Dockerfile
index bd19c7f..686ec4b 100644
--- a/ontime-back/Dockerfile
+++ b/ontime-back/Dockerfile
@@ -1,4 +1,7 @@
 FROM openjdk:17
+RUN apk add --no-cache tzdata && \
+    ln -snf /usr/share/zoneinfo/Asia/Seoul /etc/localtime && \
+    echo "Asia/Seoul" > /etc/timezone
 WORKDIR /app
 COPY project.jar app.jar
 ENTRYPOINT ["java", "-jar", "/app/app.jar"]
\ No newline at end of file
diff --git a/ontime-back/build.gradle b/ontime-back/build.gradle
index f6a9e6d..e03bc4c 100644
--- a/ontime-back/build.gradle
+++ b/ontime-back/build.gradle
@@ -49,7 +49,7 @@ dependencies {
 	implementation 'com.auth0:java-jwt:4.4.0'
 
 	// oauth
-	implementation 'org.springframework.boot:spring-boot-starter-oauth2-client'
+//	implementation 'org.springframework.boot:spring-boot-starter-oauth2-client'
 
 	// Swagger
 	implementation 'org.springdoc:springdoc-openapi-starter-webmvc-ui:2.0.2'
diff --git a/ontime-back/src/main/java/devkor/ontime_back/controller/SocialAuthController.java b/ontime-back/src/main/java/devkor/ontime_back/controller/SocialAuthController.java
index a1b6417..6595dd5 100644
--- a/ontime-back/src/main/java/devkor/ontime_back/controller/SocialAuthController.java
+++ b/ontime-back/src/main/java/devkor/ontime_back/controller/SocialAuthController.java
@@ -38,7 +38,7 @@ public class SocialAuthController {
                     content = @Content(
                             schema = @Schema(
                                     type = "object",
-                                    example = "{\n \"accessToken\": \"ya29.xxxxxxx\" }"
+                                    example = "{\n \"idToken\": \"eyJhbGxxxxxxx\" ,\n  \"refreshToken\": \"\"}}"
                             )
                     )
             )
diff --git a/ontime-back/src/main/java/devkor/ontime_back/dto/SocialUserSignupDto.java b/ontime-back/src/main/java/devkor/ontime_back/dto/SocialUserSignupDto.java
deleted file mode 100644
index 1d1864a..0000000
--- a/ontime-back/src/main/java/devkor/ontime_back/dto/SocialUserSignupDto.java
+++ /dev/null
@@ -1,15 +0,0 @@
-package devkor.ontime_back.dto;
-
-import lombok.Getter;
-import lombok.NoArgsConstructor;
-import lombok.ToString;
-
-import java.sql.Time;
-
-@ToString
-@NoArgsConstructor
-@Getter
-public class SocialUserSignupDto {
-    private Integer spareTime;  // 여유시간
-    private String note;     // 주의사항
-}
diff --git a/ontime-back/src/main/java/devkor/ontime_back/global/oauth/google/GoogleLoginService.java b/ontime-back/src/main/java/devkor/ontime_back/global/oauth/google/GoogleLoginService.java
index 6931fa3..6a1ac45 100644
--- a/ontime-back/src/main/java/devkor/ontime_back/global/oauth/google/GoogleLoginService.java
+++ b/ontime-back/src/main/java/devkor/ontime_back/global/oauth/google/GoogleLoginService.java
@@ -29,12 +29,12 @@
 
 import java.io.IOException;
 import java.util.Collections;
+import java.util.List;
 import java.util.Optional;
 import java.util.UUID;
 
 @Slf4j
 @Service
-@RequiredArgsConstructor
 public class GoogleLoginService {
 
     private final JwtTokenProvider jwtTokenProvider;
@@ -42,8 +42,19 @@ public class GoogleLoginService {
     private static final String GOOGLE_USER_INFO_URL = "https://www.googleapis.com/userinfo/v2/me";
     private static final String GOOGLE_REVOKE_URL = "https://oauth2.googleapis.com/revoke?token=";
 
-    @Value("${spring.security.oauth2.client.registration.google.client-id}")
-    private String clientId;
+    private final List<String> validClientIds;
+
+    public GoogleLoginService(
+            JwtTokenProvider jwtTokenProvider,
+            UserRepository userRepository,
+            @Value("${google.web.client-id}") String webClientId,
+            @Value("${google.app.client-id}") String appClientId
+    ) {
+        this.jwtTokenProvider = jwtTokenProvider;
+        this.userRepository = userRepository;
+        this.validClientIds = List.of(webClientId, appClientId);
+    }
+
 
     public Authentication handleLogin(OAuthGoogleRequestDto oAuthGoogleRequestDto, User user, HttpServletResponse response) throws IOException {
         user.updateSocialLoginToken(oAuthGoogleRequestDto.getRefreshToken());
@@ -127,7 +138,7 @@ public GoogleIdToken.Payload verifyIdentityToken(String identityToken) throws Ex
         GoogleIdTokenVerifier verifier = new GoogleIdTokenVerifier.Builder(
                 new NetHttpTransport(),
                 GsonFactory.getDefaultInstance())
-                .setAudience(Collections.singletonList(clientId)) // aud 확인
+                .setAudience(validClientIds) // aud 확인
                 .build();
 
         GoogleIdToken idToken = verifier.verify(identityToken); // Google의 공개 키를 사용하여 idToken 서명을 검증