diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 7f8965d0b..e15465488 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -16,13 +16,24 @@ jobs:
       uses: actions/setup-node@v1
       with:
         node-version: ${{ matrix.node-version }}
+    - name: Cache modules
+      uses: actions/cache@v1
+      with:
+        path: ~/.npm
+        key: ${{ runner.OS }}-node-${{ hashFiles('package-lock.json') }}
+        restore-keys: |
+          ${{ runner.OS }}-node-
+          ${{ runner.OS }}-
     - run: npm ci
+      env:
+        PUPPETEER_SKIP_CHROMIUM_DOWNLOAD: 1
     - name: Pre-Test
       run: |
         npm run lint
 
-        npm run test-headless -- --chrome $(which google-chrome-stable) --allow-chrome-as-root
-        npm run test-webworker -- --chrome $(which google-chrome-stable) --allow-chrome-as-root
+        export SINON_CHROME_BIN=$(which google-chrome-stable)
+        npm run test-headless -- --chrome $SINON_CHROME_BIN --allow-chrome-as-root
+        npm run test-webworker -- --chrome $SINON_CHROME_BIN --allow-chrome-as-root
         npm run test-esm-bundle
       if: matrix.node-version == 10