diff --git a/.github/workflows/phpcs.yml b/.github/workflows/phpcs.yml
index ca767f9..f378192 100644
--- a/.github/workflows/phpcs.yml
+++ b/.github/workflows/phpcs.yml
@@ -19,6 +19,9 @@ jobs:
         php-version: '8.1'
         tools: composer
 
+    - name: Configure Composer allow-plugins
+      run: composer config --no-plugins allow-plugins.dealerdirect/phpcodesniffer-composer-installer true
+
     - name: Install dependencies
       run: composer install
 
@@ -28,7 +31,7 @@ jobs:
         composer require phpmd/phpmd
 
     - name: Run PHP Mess Detector
-      run: vendor/bin/phpmd . text cleancode,codesize,controversial,design,naming,unusedcode
+      run: vendor/bin/phpmd . text cleancode,codesize,controversial,design,naming,unusedcode --exclude vendor
 
     - name: Run PHP CodeSniffer
       run: vendor/bin/phpcs --standard=PSR12,Magento2 .