diff --git a/composer.json b/composer.json
index e29e7dd..6faa107 100644
--- a/composer.json
+++ b/composer.json
@@ -18,13 +18,8 @@
     "issues": "https://github.com/omines/directadmin/issues"
   },
   "require": {
-    "php": ">=5.6.0",
-    "guzzlehttp/guzzle": "^6.1|^7.0"
-  },
-  "require-dev": {
-    "phpunit/phpunit": "^5.7 || ^7.3",
-    "friendsofphp/php-cs-fixer": "^2.0",
-    "php-coveralls/php-coveralls": "^2.1"
+    "php": "^8.1",
+    "guzzlehttp/guzzle": "^7.0"
   },
   "autoload": {
     "psr-4": {