diff --git a/config/config.example.js b/config/config.example.js
index b5b9722..d124c43 100644
--- a/config/config.example.js
+++ b/config/config.example.js
@@ -1,4 +1,6 @@
-import firebase from "firebase";
+import firebase from 'firebase/compat/app';
+import 'firebase/compat/auth';
+import 'firebase/compat/firestore';
 
 var config = {
   apiKey: "",
@@ -8,12 +10,21 @@ var config = {
   storageBucket: "",
   messagingSenderId: "",
 };
-firebase.initializeApp(config);
 
 var MAP_API_KEY = "";
 
-export const f = firebase;
-export const database = firebase.database();
-export const auth = firebase.auth();
-export const storage = firebase.storage();
+let app;
+
+if (firebase.apps.length === 0) {
+  app = firebase.initializeApp(config)
+} else {
+  app = firebase.app();
+}
+
+const database= app.firestore();
+const auth = firebase.auth();
+const f = firebase
+
+export { database, auth, f };
+
 export const MAP_API = MAP_API_KEY;