diff --git a/index.html b/index.html
index 008eb01..6060735 100644
--- a/index.html
+++ b/index.html
@@ -478,13 +478,13 @@ <h2 style="margin:0">ログインしてチャットを始めましょう</h2>
 import { getAuth, GoogleAuthProvider, signInWithPopup, createUserWithEmailAndPassword, signInWithEmailAndPassword, onAuthStateChanged, signOut, updateProfile } from "https://www.gstatic.com/firebasejs/10.12.0/firebase-auth.js";
 import { getFirestore, collection, addDoc, onSnapshot, query, orderBy, serverTimestamp, doc, setDoc, deleteDoc, updateDoc, arrayUnion, where, getDocs, limit } from "https://www.gstatic.com/firebasejs/10.12.0/firebase-firestore.js";
 
-const firebaseConfig = {
-  apiKey: "AIzaSyDNUzhTrnAAUJye82vNZEy0Sgnj7e8IR9E",
-  authDomain: "line-16068.firebaseapp.com",
-  projectId: "line-16068",
-  storageBucket: "line-16068.appspot.com",
-  messagingSenderId: "35972275719",
-  appId: "1:35972275719:web:383fd1ac8a47ceca96d4a2"
+  const firebaseConfig = {
+  apiKey: "AIzaSyCcgPXbVlQBK66PXgGjjh65bDnnBfc4L_o",
+  authDomain: "line-59d73.firebaseapp.com",
+  projectId: "line-59d73",
+  storageBucket: "line-59d73.firebasestorage.app",
+  messagingSenderId: "959220344538",
+  appId: "1:959220344538:web:510bf6723f3046b5bfe7e3",
 };
 
 const app = initializeApp(firebaseConfig);