diff --git a/frontend/hooks/useAuth.ts b/frontend/hooks/useAuth.ts
index 3078ca29..99376992 100644
--- a/frontend/hooks/useAuth.ts
+++ b/frontend/hooks/useAuth.ts
@@ -1,6 +1,6 @@
 import { useState, useEffect, useCallback } from "react";
 import { useRouter } from "next/navigation";
-import { apiCall } from "@/lib/api/client";
+import { apiCall, API_BASE_URL } from "@/lib/api/client";
 
 // 사용자 정보 타입 정의
 interface UserInfo {
@@ -98,8 +98,7 @@ export const useAuth = () => {
   const [loading, setLoading] = useState(true);
   const [error, setError] = useState<string | null>(null);
 
-  // API 기본 URL 설정
-  const API_BASE_URL = process.env.NEXT_PUBLIC_API_URL || "http://39.117.244.52:8080/api";
+  // API 기본 URL 설정 (동적으로 결정)
 
   /**
    * 현재 사용자 정보 조회
diff --git a/frontend/hooks/useLogin.ts b/frontend/hooks/useLogin.ts
index 733716d6..5abffac9 100644
--- a/frontend/hooks/useLogin.ts
+++ b/frontend/hooks/useLogin.ts
@@ -4,6 +4,7 @@ import { useState, useEffect, useCallback } from "react";
 import { useRouter } from "next/navigation";
 import { LoginFormData, LoginResponse } from "@/types/auth";
 import { AUTH_CONFIG, FORM_VALIDATION } from "@/constants/auth";
+import { API_BASE_URL } from "@/lib/api/client";
 
 /**
  * 로그인 관련 비즈니스 로직을 관리하는 커스텀 훅
@@ -60,7 +61,7 @@ export const useLogin = () => {
    * API 호출 공통 함수
    */
   const apiCall = useCallback(async (endpoint: string, options: RequestInit = {}): Promise<LoginResponse> => {
-    const response = await fetch(`${AUTH_CONFIG.API_BASE_URL}${endpoint}`, {
+    const response = await fetch(`${API_BASE_URL}${endpoint}`, {
       credentials: "include",
       headers: {
         "Content-Type": "application/json",