diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 70fa769..f1b75b2 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -19,7 +19,7 @@ jobs:
       - name: Setup Node.js
         uses: actions/setup-node@v4
         with:
-          node-version: '20'
+          node-version: '22'
           cache: npm
 
       - name: Install packages
@@ -33,3 +33,12 @@ jobs:
 
       - name: Run unit test
         run: npm run test:unit
+
+      - name: Check file changes
+        run: |
+          npm run build
+          npx prettier --version
+          npx prettier --check . || exit 100
+          git status --short
+          git diff
+          git diff --quiet