diff --git a/src/config/firebase.ts b/src/config/firebase.ts
index e974377..c5aab56 100644
--- a/src/config/firebase.ts
+++ b/src/config/firebase.ts
@@ -4,13 +4,13 @@ import { getAuth } from 'firebase/auth';
 import { getAnalytics } from 'firebase/analytics';
 
 const firebaseConfig = {
-  apiKey: import.meta.env.VITE_FIREBASE_API_KEY,
-  authDomain: import.meta.env.VITE_FIREBASE_AUTH_DOMAIN,
-  projectId: import.meta.env.VITE_FIREBASE_PROJECT_ID,
-  storageBucket: import.meta.env.VITE_FIREBASE_STORAGE_BUCKET,
-  messagingSenderId: import.meta.env.VITE_FIREBASE_MESSAGING_SENDER_ID,
-  appId: import.meta.env.VITE_FIREBASE_APP_ID,
-  measurementId: import.meta.env.VITE_FIREBASE_MEASUREMENT_ID,
+  apiKey: import.meta.env.VITE_FIREBASE_API_KEY || 'firebaseApiKey',
+  authDomain: import.meta.env.VITE_FIREBASE_AUTH_DOMAIN || 'firebaseAuthDomain',
+  projectId: import.meta.env.VITE_FIREBASE_PROJECT_ID || 'firebaseProjectId',
+  storageBucket: import.meta.env.VITE_FIREBASE_STORAGE_BUCKET || 'firebaseStorageBucket',
+  messagingSenderId: import.meta.env.VITE_FIREBASE_MESSAGING_SENDER_ID || 'firebaseMessagingSenderId',
+  appId: import.meta.env.VITE_FIREBASE_APP_ID || 'firebaseAppId',
+  measurementId: import.meta.env.VITE_FIREBASE_MEASUREMENT_ID || 'firebaseMeasurementId',
 };
 
 const app = initializeApp(firebaseConfig);