diff --git a/.github/workflows/node.js.yml b/.github/workflows/node.js.yml
index 46b6a34..64e1f1d 100644
--- a/.github/workflows/node.js.yml
+++ b/.github/workflows/node.js.yml
@@ -26,4 +26,5 @@ jobs:
       with:
         node-version: ${{ matrix.node-version }}
         cache: 'npm'
+    - run: npm install -D typescript
     - run: npm run build-ts