diff --git a/composer.json b/composer.json
index 441f623..ae3aff5 100644
--- a/composer.json
+++ b/composer.json
@@ -23,10 +23,10 @@
     },
     "require-dev": {
         "ockcyp/covers-validator": "^1.3.3",
-        "phpunit/phpunit": "^6.5.14||^7.0.15||^8.5.13||^9.5.0",
+        "phpunit/phpunit": "^8.5.13||^9.5.0",
         "php-parallel-lint/php-console-highlighter": "^1.0",
         "php-parallel-lint/php-parallel-lint": "^1.4",
-        "friendsofphp/php-cs-fixer": "^3.4||^3.5||^3.6",
+        "friendsofphp/php-cs-fixer": "^3.4",
         "brainmaestro/composer-git-hooks": "^2.8"
     },
     "scripts": {