diff --git a/src/main/java/org/recordy/server/user/service/impl/UserServiceImpl.java b/src/main/java/org/recordy/server/user/service/impl/UserServiceImpl.java
index 209fc36e..aa6d5623 100644
--- a/src/main/java/org/recordy/server/user/service/impl/UserServiceImpl.java
+++ b/src/main/java/org/recordy/server/user/service/impl/UserServiceImpl.java
@@ -83,13 +83,15 @@ public User signUp(UserSignUp userSignUp) {
     }
 
     private void followRoot(User user) {
-        userRepository.findById(rootUserId)
-                .ifPresent(rootUser ->
-                        subscribeRepository.save(Subscribe.builder()
-                                .subscribingUser(user)
-                                .subscribedUser(rootUser)
-                                .build())
-                );
+        if (!user.getId().equals(rootUserId)) {
+            userRepository.findById(rootUserId)
+                    .ifPresent(rootUser ->
+                                subscribeRepository.save(Subscribe.builder()
+                                        .subscribingUser(user)
+                                        .subscribedUser(rootUser)
+                                        .build())
+                    );
+        }
     }
 
     @Override
diff --git a/src/test/java/org/recordy/server/mock/user/FakeUserRepository.java b/src/test/java/org/recordy/server/mock/user/FakeUserRepository.java
index 817a5202..a4bbe8c4 100644
--- a/src/test/java/org/recordy/server/mock/user/FakeUserRepository.java
+++ b/src/test/java/org/recordy/server/mock/user/FakeUserRepository.java
@@ -14,6 +14,11 @@ public class FakeUserRepository implements UserRepository {
 
     @Override
     public User save(User user) {
+        if (users.get(user.getId()) != null) {
+            users.put(user.getId(), user);
+            return user;
+        }
+
         User realUser = User.builder()
                 .id(autoIncrementId)
                 .authPlatform(user.getAuthPlatform())
@@ -23,7 +28,6 @@ public User save(User user) {
                 .build();
 
         users.put(autoIncrementId++, realUser);
-
         return realUser;
     }
 
diff --git a/src/test/java/org/recordy/server/user/service/UserServiceTest.java b/src/test/java/org/recordy/server/user/service/UserServiceTest.java
index eac12ce4..0e47338b 100644
--- a/src/test/java/org/recordy/server/user/service/UserServiceTest.java
+++ b/src/test/java/org/recordy/server/user/service/UserServiceTest.java
@@ -165,26 +165,6 @@ void init() {
         assertThat(result.getStatus()).isEqualTo(UserStatus.ACTIVE);
     }
 
-    @Test
-    void signUp을_통해_가입된_사용자가_ROOT_사용자를_팔로우할_수_있다() {
-        // given
-        UserSignIn rootSignIn = new UserSignIn("root", AuthPlatform.Type.KAKAO);
-        userService.signIn(rootSignIn);
-        UserSignUp rootSignUp = new UserSignUp(1L, "유영", TermsAgreement.of(true, true, true));
-        userService.signUp(rootSignUp);
-
-        // when
-        UserSignIn userSignIn = DomainFixture.createUserSignIn(AuthPlatform.Type.APPLE);
-        userService.signIn(userSignIn);
-        UserSignUp userSignUp = DomainFixture.createUserSignUp();
-        User result = userService.signUp(userSignUp);
-
-        // then
-        assertAll(
-                () -> assertThat(userRepository.findById(3)).isNotEmpty()
-        );
-    }
-
     @Test
     void reissueToken을_통해_accessToken을_재발급_받을_수_있다() {
         //given