diff --git a/src/main/java/org/sopt/seonyakServer/domain/member/service/MemberService.java b/src/main/java/org/sopt/seonyakServer/domain/member/service/MemberService.java
index ee96fe4..a60ec82 100644
--- a/src/main/java/org/sopt/seonyakServer/domain/member/service/MemberService.java
+++ b/src/main/java/org/sopt/seonyakServer/domain/member/service/MemberService.java
@@ -183,7 +183,7 @@ public MemberJoinResponse patchMemberJoin(MemberJoinRequest memberJoinRequest) {
                 memberJoinRequest.isSubscribed(),
                 memberJoinRequest.nickname(),
                 memberJoinRequest.image(),
-                memberJoinRequest.phoneNumber(),
+                memberJoinRequest.phoneNumber().replaceAll("-", ""),
                 memberJoinRequest.univName(),
                 memberJoinRequest.field(),
                 memberJoinRequest.departmentList()