diff --git a/composer.json b/composer.json
index 2c64aff..f6f6296 100644
--- a/composer.json
+++ b/composer.json
@@ -29,6 +29,7 @@
         "phpstan/phpstan-phpunit": "^0.12.17",
         "phpstan/phpstan-strict-rules": "^0.12.9",
         "phpunit/phpunit": "^9.5",
+        "symfony/var-dumper": "^5.3",
         "vimeo/psalm": "^4.4"
     },
     "config": {
@@ -39,6 +40,11 @@
             "Nsq\\": "src/"
         }
     },
+    "autoload-dev": {
+        "files": [
+            "vendor/symfony/var-dumper/Resources/functions/dump.php"
+        ]
+    },
     "minimum-stability": "dev",
     "prefer-stable": true,
     "scripts": {