diff --git a/composer.json b/composer.json
index 5a86105..dfca350 100644
--- a/composer.json
+++ b/composer.json
@@ -26,8 +26,8 @@
         "php": ">=5.6.0",
         "portphp/portphp": "^1.0.0",
         "seld/signal-handler": "^1.0",
-        "symfony/property-access": "^2.3 || ^3.0 || ^4.0 || ^5.0",
-        "symfony/validator": "^2.5 || ^3.0 || ^4.0 || ^5.0"
+        "symfony/property-access": "^2.3 || ^3.0 || ^4.0 || ^5.0 || ^6.0",
+        "symfony/validator": "^2.5 || ^3.0 || ^4.0 || ^5.0 || ^6.0"
     },
     "autoload": {
         "psr-4": {