diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ba343e3a12..67fd5aac7a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -6,40 +6,49 @@ on:
   schedule:
     - cron: '0 0 * * 0'
 
-permissions:
-  contents: read
-
 jobs:
   test-node:
     runs-on: ubuntu-latest
-    timeout-minutes: 10
 
     strategy:
-      fail-fast: false
       matrix:
-        node-version:
-          - 18
-          - 20
+        node-version: [12, 14, 16]
 
     steps:
-      - name: Checkout repository
-        uses: actions/checkout@v4
-
+      - uses: actions/checkout@v2
       - name: Use Node.js ${{ matrix.node-version }}
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v2
         with:
           node-version: ${{ matrix.node-version }}
+      - run: npm ci
+      - run: npm test
+        env:
+          CI: true
 
-      - name: Install dependencies
-        run: npm ci
-
-      # in order to test our compliance with TypeScript v4.2 (older versions are not tested)
-      - name: Install TypeScript 4.2
-        run: npm i typescript@4.2
-        if: ${{ matrix.node-version == '16' }}
+  build-examples:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
 
-      - name: Compile each package
-        run: npm run compile --workspaces --if-present
+    strategy:
+      fail-fast: false
+      matrix:
+        example:
+          - custom-parsers
+          - typescript
+          - webpack-build
+          - webpack-build-server
 
-      - name: Run tests
-        run: npm test --workspaces
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+        
+      - name: Use Node.js 20
+        uses: actions/setup-node@v3
+        with:
+          node-version: 20
+          
+      - name: Build ${{ matrix.example }}
+        run: |
+          cd examples/${{ matrix.example }}
+          npm install
+          npm run build
diff --git a/examples/cluster-nginx/docker-compose.yml b/examples/cluster-nginx/docker-compose.yml
index 810c3b6892..0c2b76076a 100644
--- a/examples/cluster-nginx/docker-compose.yml
+++ b/examples/cluster-nginx/docker-compose.yml
@@ -3,27 +3,18 @@ services:
     image: nginx:alpine
     volumes:
       - ./nginx.conf:/etc/nginx/nginx.conf:ro
-    links:
-      - server-john
-      - server-paul
-      - server-george
-      - server-ringo
     ports:
-     - "3000:80"
+    - "3000:80"
 
   server-john:
     build: ./server
-    links:
-      - redis
     expose:
-      - "3000"
+    - "3000"
     environment:
       - NAME=John
 
   server-paul:
     build: ./server
-    links:
-      - redis
     expose:
       - "3000"
     environment:
@@ -31,8 +22,6 @@ services:
 
   server-george:
     build: ./server
-    links:
-      - redis
     expose:
       - "3000"
     environment:
@@ -40,8 +29,6 @@ services:
 
   server-ringo:
     build: ./server
-    links:
-      - redis
     expose:
       - "3000"
     environment:
@@ -49,10 +36,8 @@ services:
 
   client:
     build: ./client
-    links:
-      - nginx
 
   redis:
-    image: redis:6
+    image: redis:alpine
     expose:
       - "6379"