diff --git a/.github/workflows/CI.yml b/.github/workflows/CI.yml
index 4f91780b..8d238942 100644
--- a/.github/workflows/CI.yml
+++ b/.github/workflows/CI.yml
@@ -13,9 +13,7 @@ jobs:
     steps:
       - uses: actions/checkout@v2
       - run: yarn install --immutable
+      - run: yarn prettier:check
       - run: yarn build:all
+      - run: yarn lint:all
       - run: yarn test:all
-      - working-directory: ./extension
-        run: yarn install --immutable
-      - working-directory: ./extension
-        run: yarn test