diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index 507688b..808d0b2 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -24,3 +24,12 @@ jobs:
         with: { node-version: 16 }
       - run: npm ci
       - run: npm run lint
+
+  tsc:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v2
+        with: { node-version: 16 }
+      - run: npm ci
+      - run: npx tsc