diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 8f87b62..96e2b0d 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -36,9 +36,6 @@ jobs:
         run: npm run build -- --base="/rabbit/" # https://syusui-s.github.io/rabbit/
       - name: Check license
         run: npm run checkLicense
-      - name: Copy index.html for GitHub Pages
-        if: ${{ github.ref == 'refs/heads/main' }}
-        run: cp dist/index.html dist/404.html
       - name: Deploy
         uses: peaceiris/actions-gh-pages@v3
         if: ${{ github.ref == 'refs/heads/main' }}
diff --git a/src/index.tsx b/src/index.tsx
index 7c3926c..6ce2726 100644
--- a/src/index.tsx
+++ b/src/index.tsx
@@ -1,5 +1,5 @@
 /* @refresh reload */
-import { Router } from '@solidjs/router';
+import { Router, hashIntegration } from '@solidjs/router';
 import { render } from 'solid-js/web';
 
 import '@/index.css';
@@ -7,7 +7,7 @@ import App from '@/App';
 
 render(
   () => (
-    <Router base={import.meta.env.BASE_URL}>
+    <Router base={import.meta.env.BASE_URL} source={hashIntegration()}>
       <App />
     </Router>
   ),