diff --git a/src/main/java/sopt/univoice/domain/auth/service/AuthService.java b/src/main/java/sopt/univoice/domain/auth/service/AuthService.java
index 4b7b727..bb424a5 100644
--- a/src/main/java/sopt/univoice/domain/auth/service/AuthService.java
+++ b/src/main/java/sopt/univoice/domain/auth/service/AuthService.java
@@ -50,7 +50,7 @@
 @RequiredArgsConstructor
 public class AuthService {
 
-    final String WEBHOOK_URL = "https://hooks.slack.com/services/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";
+    final String WEBHOOK_URL = "https://hooks.slack.com/services/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";
     private static final String S3_BUCKET_URL = "https://uni-voice-bucket.s3.ap-northeast-2.amazonaws.com/";
 
 
@@ -170,7 +170,7 @@ public void signUp(MemberCreateRequest memberCreateRequest) {
                 member.getStudentNumber(),
                 member.getEmail(),
                 member.getPassword(),
-                S3_BUCKET_URL + member.getStudentCardImage(),
+                member.getStudentCardImage(),
                 member.getUniversityName(),
                 member.getCollegeDepartmentName(),
                 member.getDepartmentName()