diff --git a/composer.json b/composer.json
index 3082761..3786ad2 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
     "psr/log": "^1.0"
   },
   "require-dev": {
-    "symfony/var-dumper": "^4.0",
+    "symfony/var-dumper": "^5.2",
     "phpunit/phpunit": "^5.4",
     "monolog/monolog": "^1.3",
     "symfony/http-foundation": "^3.0",