diff --git a/.github/workflows/pull-request.yml b/.github/workflows/pull-request.yml
index 46f7e9f..cd1efe8 100644
--- a/.github/workflows/pull-request.yml
+++ b/.github/workflows/pull-request.yml
@@ -38,6 +38,8 @@ jobs:
           node-version: latest
           cache: npm
 
+      - run: npm install --include dev
+
       - run: npm run clean
 
       - run: npm run build
@@ -59,6 +61,8 @@ jobs:
           node-version: latest
           cache: npm
 
+      - run: npm install --include dev
+
       - name: Test
         run: npm run test