diff --git a/src/main/java/com/Alchive/backend/config/auth/handler/OAuth2SuccessHandler.java b/src/main/java/com/Alchive/backend/config/auth/handler/OAuth2SuccessHandler.java
index 878df11..6782d89 100644
--- a/src/main/java/com/Alchive/backend/config/auth/handler/OAuth2SuccessHandler.java
+++ b/src/main/java/com/Alchive/backend/config/auth/handler/OAuth2SuccessHandler.java
@@ -44,7 +44,7 @@ public void onAuthenticationSuccess(HttpServletRequest request, HttpServletRespo
                     .build().toUriString();
         }
         else { // 회원가입인 경우
-            targetUrl = UriComponentsBuilder.fromUriString("http://localhost:3000/signin")
+            targetUrl = UriComponentsBuilder.fromUriString("http://localhost:5173/sign")
                     .queryParam("email",email)
                     .build().toUriString();
         }
diff --git a/src/main/java/com/Alchive/backend/domain/problem/ProblemDifficulty.java b/src/main/java/com/Alchive/backend/domain/problem/ProblemDifficulty.java
index 24397b5..8f02af3 100644
--- a/src/main/java/com/Alchive/backend/domain/problem/ProblemDifficulty.java
+++ b/src/main/java/com/Alchive/backend/domain/problem/ProblemDifficulty.java
@@ -1,6 +1,7 @@
 package com.Alchive.backend.domain.problem;
 
 public enum ProblemDifficulty {
+    LEVEL0("레벨 0"),
 
     LEVEL1("레벨 1"),
     LEVEL2("레벨 2"),
diff --git a/src/main/java/com/Alchive/backend/domain/solution/SolutionLanguage.java b/src/main/java/com/Alchive/backend/domain/solution/SolutionLanguage.java
index aadec0c..803d78a 100644
--- a/src/main/java/com/Alchive/backend/domain/solution/SolutionLanguage.java
+++ b/src/main/java/com/Alchive/backend/domain/solution/SolutionLanguage.java
@@ -4,7 +4,7 @@ public enum SolutionLanguage {
     PYTHON("python"),
     CPP("c++"),
     C("c"),
-    JS("js"),
+    JAVASCRIPT("javascript"),
     JAVA("java");
 
     private final String description;