diff --git a/.github/workflows/pr.yml b/.github/workflows/pr.yml
index ed56e9f..307f1ec 100644
--- a/.github/workflows/pr.yml
+++ b/.github/workflows/pr.yml
@@ -13,3 +13,4 @@ jobs:
           node-version: 14.x
       - run: yarn install
       - run: yarn test
+      - run: docker build