diff --git a/frontend/public/index.html b/frontend/public/index.html
index ed1fb15..6455083 100644
--- a/frontend/public/index.html
+++ b/frontend/public/index.html
@@ -23,7 +23,7 @@
       work correctly both with client-side routing and a non-root public URL.
       Learn how to configure a non-root public URL by running `npm run build`.
     -->
-    <title>React App</title>
+    <title>料理材料アプリ</title>
   </head>
   <body>
     <noscript>You need to enable JavaScript to run this app.</noscript>
diff --git a/frontend/src/components/Layout.tsx b/frontend/src/components/Layout.tsx
index 4ac785b..91671d2 100644
--- a/frontend/src/components/Layout.tsx
+++ b/frontend/src/components/Layout.tsx
@@ -74,7 +74,7 @@ const Layout: React.FC = () => {
             <MenuIcon />
           </IconButton>
           <Typography variant="h6" component="div" sx={{ flexGrow: 1 }}>
-            ToDoアプリ
+            料理材料アプリ
           </Typography>
           <Button color="inherit" onClick={handleLogout}>
             ログアウト
