diff --git a/.github/workflows/integrate.yml b/.github/workflows/integrate.yml
index af84777..df9269b 100644
--- a/.github/workflows/integrate.yml
+++ b/.github/workflows/integrate.yml
@@ -27,6 +27,10 @@ jobs:
       REPORT_EXIT_STATUS: "yes"
       NO_INTERACTION: "yes"
     steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          submodules: true
       - name: Setup
         uses: shivammathur/setup-php@v2
         with: