diff --git a/composer.json b/composer.json
index d968020..1dfa321 100644
--- a/composer.json
+++ b/composer.json
@@ -19,12 +19,12 @@
         "sort-packages": true
     },
     "require": {
-        "php": "^5.3 || ^7.0",
+        "php": "^5.3 || ^7.0 || ^8.0",
         "ext-curl": "*",
         "padraic/phar-updater": "^1.0",
         "psr/log": "^1.0",
         "satooshi/php-coveralls": "^1.0",
-        "symfony/console": "^2.0 || ^3.0 || ^4.0"
+        "symfony/console": "^2.0 || ^3.0 || ^4.0 || ^5.0"
     },
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^2.0.0",