diff --git a/.github/workflows/phpcs_on_pull_request.yml b/.github/workflows/phpcs_on_pull_request.yml
index ba827aa1..6936961b 100644
--- a/.github/workflows/phpcs_on_pull_request.yml
+++ b/.github/workflows/phpcs_on_pull_request.yml
@@ -1,15 +1,51 @@
-on: pull_request
 name: Inspections
+on:
+  pull_request:
+    types:
+      - opened
+      - synchronize
+      - ready_for_review
+
+# Cancel previous workflow run groups that have not completed.
+concurrency:
+  # Group workflow runs by workflow name, along with the head branch ref of the pull request
+  # or otherwise the branch or tag ref.
+  group: ${{ github.workflow }}-${{ github.event_name == 'pull_request' && github.head_ref || github.ref }}
+  cancel-in-progress: true
+
 jobs:
   runPHPCSInspection:
     name: Run PHPCS inspection
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
-      with:
-        ref: ${{ github.event.pull_request.head.sha }}
-    - name: Run PHPCS inspection
-      uses: rtCamp/action-phpcs-code-review@master
-      env:
-        SKIP_FOLDERS: "tests,.github"
-        GH_BOT_TOKEN: ${{ secrets.RTBOT_TOKEN }}
+      - name: Checkout
+        uses: actions/checkout@v3
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: "8.0"
+          coverage: none
+
+      - name: Configure Composer cache
+        uses: actions/cache@v3.0.5
+        id: php-composer-cache
+        env:
+          SEGMENT_DOWNLOAD_TIMEOUT_MINS: '5'
+        with:
+          path: vendor
+          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-composer-
+
+      - name: Install Composer dependencies
+        if: ${{ steps.php-composer-cache.outputs.cache-hit != 'true' }}
+        run: composer install --prefer-dist --optimize-autoloader --no-progress --no-interaction
+
+      - name: Validate composer.json
+        run: composer --no-interaction validate --no-check-all
+      - name: Run PHPCS inspection
+        uses: rtCamp/action-phpcs-code-review@master
+        env:
+          SKIP_FOLDERS: "tests,.github"
+          GH_BOT_TOKEN: ${{ secrets.RTBOT_TOKEN }}