diff --git a/src/store/authStore.ts b/src/store/authStore.ts
index f04beb0c..c9b0b6ad 100644
--- a/src/store/authStore.ts
+++ b/src/store/authStore.ts
@@ -14,7 +14,7 @@ interface AuthState {
   storeLogin: (
     accessToken: string,
     refreshToken: string,
-    userData: UserData
+    userData?: UserData
   ) => void;
   storeLogout: () => void;
 }
@@ -56,7 +56,7 @@ const useAuthStore = create(
       storeLogin: (
         accessToken: string,
         refreshToken: string,
-        userData: UserData
+        userData?: UserData
       ) => {
         setTokens(accessToken, refreshToken);
         localStorage.setItem('userData', encryptData(userData));
diff --git a/src/util/cryptoUtils.ts b/src/util/cryptoUtils.ts
index 5a650fcf..480c06cf 100644
--- a/src/util/cryptoUtils.ts
+++ b/src/util/cryptoUtils.ts
@@ -1,7 +1,7 @@
 import CryptoJS from 'crypto-js';
 import { UserData } from '../store/authStore';
 
-export const encryptData = (data: UserData) => {
+export const encryptData = (data: UserData | undefined) => {
   return CryptoJS.AES.encrypt(
     JSON.stringify(data),
     `${import.meta.env.CRYPTO_SECRET_KEY}`