diff --git a/.github/workflows/firebase-hosting-merge.yml b/.github/workflows/firebase-hosting-merge.yml
index a382d0c..6b9a438 100644
--- a/.github/workflows/firebase-hosting-merge.yml
+++ b/.github/workflows/firebase-hosting-merge.yml
@@ -11,6 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
+      - run: npm ci && npm run build
       - uses: FirebaseExtended/action-hosting-deploy@v0
         with:
           repoToken: '${{ secrets.GITHUB_TOKEN }}'
diff --git a/.github/workflows/firebase-hosting-pull-request.yml b/.github/workflows/firebase-hosting-pull-request.yml
index c1355f8..be28582 100644
--- a/.github/workflows/firebase-hosting-pull-request.yml
+++ b/.github/workflows/firebase-hosting-pull-request.yml
@@ -9,6 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
+      - run: npm ci && npm run build
       - uses: FirebaseExtended/action-hosting-deploy@v0
         with:
           repoToken: '${{ secrets.GITHUB_TOKEN }}'