diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index f417e75..c926a33 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -16,7 +16,9 @@ jobs:
         os: [ubuntu-latest, windows-latest, macos-13, macos-14]
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v3
+        with:
+          submodules: true
 
       - name: Build wheels
         uses: pypa/cibuildwheel@v2.17.0