diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 28287e3..b843e73 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,4 +24,5 @@ jobs:
       with:
         node-version: '12'
     - run: yarn
+    - run: yarn build
     - run: yarn test