diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 418a3d5..a30a228 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -27,6 +27,8 @@ jobs:
       - uses: mazoea/ga-maz/start@master
 
       - uses: actions/checkout@v4
+        with:
+          submodules: recursive
 
       - name: pull and build
         run: |