diff --git a/.github/workflows/deploy.yaml b/.github/workflows/deploy.yaml
index a580eec..09ca4d4 100644
--- a/.github/workflows/deploy.yaml
+++ b/.github/workflows/deploy.yaml
@@ -12,7 +12,6 @@ jobs:
       - uses: GoogleCloudPlatform/github-actions/setup-gcloud@master
         with:
           version: '285.0.0'
-          service_account_email: ${{ secrets.GCP_SA_EMAIL }}
           service_account_key: ${{ secrets.GCP_SA_KEY }}
           export_default_credentials: true
       - name: Restore git mtime