diff --git a/.github/workflows/yarn-test.yaml b/.github/workflows/yarn-test.yaml
index d845774..0939894 100644
--- a/.github/workflows/yarn-test.yaml
+++ b/.github/workflows/yarn-test.yaml
@@ -12,6 +12,8 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v2
+        with:
+          submodules: recursive
       - name: Install package
         run: yarn install
       - name: Run `test` script