diff --git a/composer.json b/composer.json
index e48e139..1f29208 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
         "kriswallsmith/buzz": "^1.2",
         "nyholm/psr7": "^1.4",
         "pimple/pimple": "^3.2",
-        "symfony/console": "^4.3|^5.1"
+        "symfony/console": "^4.3|^5.1|^6.0"
     },
     "require-dev": {
         "infection/infection": "^0.26",