diff --git a/.github/workflows/unit-test.yml b/.github/workflows/unit-test.yml
index ccffb11f1fc..bea64d0cdc7 100644
--- a/.github/workflows/unit-test.yml
+++ b/.github/workflows/unit-test.yml
@@ -59,18 +59,21 @@ jobs:
 
       - name: restore lerna
         uses: actions/cache@v2
+        id: cache
         with:
           path: |
             node_modules
             */*/node_modules
           key: unittest-${{ runner.os }}-${{ matrix.node_version }}-${{ hashFiles('**/package.json') }}
 
-      - name: Install and Build 🔧
+      - name: Bootstrap
+        if: steps.cache.outputs.cache-hit != 'true'
         run: |
           npm install --ignore-scripts
           npx lerna bootstrap --no-ci --hoist --nohoist='zone.js'
-          npm run compile
 
+      - name: Build 🔧
+        run: npm run compile
       - name: Unit tests
         run: npm run test:browser
       - name: Report Coverage