diff --git a/.github/workflows/update-wpdororg-assets.yml b/.github/workflows/update-wpdororg-assets.yml
index 56e36596..ec3cdfa3 100644
--- a/.github/workflows/update-wpdororg-assets.yml
+++ b/.github/workflows/update-wpdororg-assets.yml
@@ -8,7 +8,14 @@ jobs:
     name: Push to trunk
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@master
+    - name: Checkout code
+      uses: actions/checkout@v2
+    - name: Build
+      run: |
+        npm install
+        npm run build
+        npm run build:externals
+        composer install -o --no-dev --ignore-platform-reqs
     - name: WordPress.org plugin asset/readme update
       uses: 10up/action-wordpress-plugin-asset-update@stable
       env: