diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 2c4f02b2..a78c26b7 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -47,4 +47,6 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
+      - name: Install JS deps
+        run: yarn install
       - uses: pre-commit/action@v2.0.0