Stricter version

Author: barryvdh

composer.json

@@ -20,7 +20,7 @@
         "php": "^8",
         "php-debugbar/php-debugbar": "^2.0",
         "doctrine/orm": "^2.10|^3.0",
-        "doctrine/dbal": ">=3.6"
+        "doctrine/dbal": "^3.6|^4"
     },
     "require-dev": {
         "phpunit/phpunit": "^8|^9",