diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 006abd2e..b1ce01a8 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -14,7 +14,5 @@ jobs:
         uses: actions/setup-node@v2
         with:
           node-version: 12.x
-      - run: npm ci
-      - run: npm run build
-      - run: npm run format-check
-      - run: npm test
+      - run: yarn install
+      - run: yarn test