diff --git a/.github/workflows/tests.yaml b/.github/workflows/tests.yaml
index 6d04548f..92555606 100644
--- a/.github/workflows/tests.yaml
+++ b/.github/workflows/tests.yaml
@@ -142,8 +142,8 @@ jobs:
         if: ${{ github.event_name == 'schedule' || github.event_name == 'push' }}
         uses: google-github-actions/auth@71fee32a0bb7e97b4d33d548e7d957010649d8fa # v2.1.3
         with:
-          workload_identity_provider: ${{ var.PROVIDER_NAME }}
-          service_account: ${{ var.SERVICE_ACCOUNT }}
+          workload_identity_provider: ${{ vars.PROVIDER_NAME }}
+          service_account: ${{ vars.SERVICE_ACCOUNT }}
 
       - name: Run tests
         # specifying bash shell ensures a failure in a piped process isn't lost by using `set -eo pipefail`