diff --git a/config.ts b/config.ts
index 0cad492..6dc90a4 100644
--- a/config.ts
+++ b/config.ts
@@ -142,8 +142,7 @@ export default {
     },
 
     inuApi: {
-      accountStatusUrl: (studentId: string, password: string) =>
-        `https://api.inuappcenter.kr/account/status?studentId=${studentId}&password=${password}`,
+      accountStatusUrl: `https://api.inuappcenter.kr/account/status`,
       key: getSecret('LOGIN_KEY', '앱센터는 모다?'),
     },
 
diff --git a/lib/external/inu/StudentAccountValidator.ts b/lib/external/inu/StudentAccountValidator.ts
index 0b433b9..1716028 100644
--- a/lib/external/inu/StudentAccountValidator.ts
+++ b/lib/external/inu/StudentAccountValidator.ts
@@ -41,9 +41,13 @@ export default class StudentAccountValidator {
 
     const studentId = this.studentId;
     const password = this.encryptPassword();
-    const url = config.external.inuApi.accountStatusUrl(studentId, password);
 
-    const response = await this.getResponse(url);
+    const url = config.external.inuApi.accountStatusUrl;
+    const headers = {
+      authorization: `Basic ${Buffer.from(`${studentId}:${password}`).toString('base64')}`,
+    };
+
+    const response = await this.getResponse(url, headers);
 
     switch (response.status) {
       case 200:
@@ -59,9 +63,9 @@ export default class StudentAccountValidator {
     }
   }
 
-  private async getResponse(url: string) {
+  private async getResponse(url: string, headers: Record<string, any>) {
     try {
-      return await withTimeout(() => fetch(url), 3000, StudentLoginUnavailable);
+      return await withTimeout(() => fetch(url, {headers}), 3000, StudentLoginUnavailable);
     } catch (e) {
       // 응답조차 받지 못하고 예외가 발생한다? 뭔가 잘못된 일이 생긴 것이니,
       // 적절한 예외(StudentLoginUnavailable)로 치환하여 줍니다.