diff --git a/.github/workflows/deploy.yml b/.github/workflows/deploy.yml
index 1011b70..6364db5 100644
--- a/.github/workflows/deploy.yml
+++ b/.github/workflows/deploy.yml
@@ -7,14 +7,10 @@ on:
 jobs:
   deploy:
     runs-on: ubuntu-latest
+
     steps:
       - uses: actions/checkout@v4
 
-      - name: Setup pnpm
-        uses: pnpm/action-setup@v4
-        with:
-          version: 9
-
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
@@ -22,6 +18,11 @@ jobs:
           cache: 'pnpm'
           cache-dependency-path: 'src/frontend/pnpm-lock.yaml'
 
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 9
+
       - name: Install dependencies
         working-directory: src/frontend
         run: pnpm install
@@ -30,11 +31,16 @@ jobs:
         working-directory: src/frontend
         run: pnpm run build
 
+      - name: Copy 404.html
+        working-directory: src/frontend
+        run: cp build/index.html build/404.html
+
       - name: Deploy to GitHub Pages
         working-directory: src/frontend
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
           git config --global user.name "github-actions[bot]"
           git config --global user.email "github-actions[bot]@users.noreply.github.com"
-          npx gh-pages -d build
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          npx gh-pages -d build -u "github-actions[bot] <github-actions[bot]@users.noreply.github.com>" \
+            --repo "https://x-access-token:${GITHUB_TOKEN}@github.com/${{ github.repository }}.git"