diff --git a/src/components/modal-secession/modal-secession.component.js b/src/components/modal-secession/modal-secession.component.js
index 0d33d4c..1e01a6b 100644
--- a/src/components/modal-secession/modal-secession.component.js
+++ b/src/components/modal-secession/modal-secession.component.js
@@ -25,7 +25,7 @@ export default class ModalSecession extends Component {
 		} else {
 			const result = await fetchSecession({ password });
 			if (result) {
-				sessionStorage.setItem('isLogin', false);
+				localStorage.setItem('isLogin', false);
 				const { router } = store.getState();
 				router.navigate('/');
 			}
diff --git a/src/helper/auth.js b/src/helper/auth.js
index 021d2f1..cbf05a7 100644
--- a/src/helper/auth.js
+++ b/src/helper/auth.js
@@ -1,7 +1,7 @@
 import { store } from '../store/store';
 
 export function signIn() {
-	sessionStorage.setItem('isLogin', true);
+	localStorage.setItem('isLogin', true);
 }
 
 export function redirectSignInPage() {
@@ -17,7 +17,7 @@ export function redirectMypage() {
 export async function signOut() {
 	try {
 		await fetch('/api/signout');
-		sessionStorage.setItem('isLogin', false);
+		localStorage.setItem('isLogin', false);
 		redirectSignInPage();
 	} catch (err) {
 		console.log(err);
@@ -25,23 +25,23 @@ export async function signOut() {
 }
 
 export function init() {
-	sessionStorage.setItem('isInit', true);
+	localStorage.setItem('isInit', true);
 }
 
 export function unInit() {
-	sessionStorage.setItem('isInit', false);
+	localStorage.setItem('isInit', false);
 }
 
 export function checkIsSignIn() {
 	if (typeof window === 'undefined') return false;
-	const isLogin = sessionStorage.getItem('isLogin');
+	const isLogin = localStorage.getItem('isLogin');
 	if (isLogin === null || isLogin === 'false') return false;
 	return true;
 }
 
 export function checkIsInit() {
 	if (typeof window === 'undefined') return false;
-	const isInit = sessionStorage.getItem('isInit');
+	const isInit = localStorage.getItem('isInit');
 	if (isInit === null || isInit === 'false') return false;
 	return true;
 }