diff --git a/.github/workflows/phpstan.yml b/.github/workflows/phpstan.yml
index adb024c..7344807 100644
--- a/.github/workflows/phpstan.yml
+++ b/.github/workflows/phpstan.yml
@@ -22,7 +22,7 @@ jobs:
           coverage: none
 
       - name: Install composer dependencies
-        uses: ramsey/composer-install@v3
+        uses: ramsey/composer-install@v4
 
       - name: Run PHPStan
         run: ./vendor/bin/phpstan analyse --error-format=github --memory-limit=512M