diff --git a/composer.json b/composer.json
index 2de60c9..fdfd5a1 100644
--- a/composer.json
+++ b/composer.json
@@ -39,7 +39,8 @@
     "require-dev": {
         "friendsofphp/php-cs-fixer": "^3.4",
         "phpstan/phpstan": "^1.8",
-        "pestphp/pest": "^2.0|^3.0"
+        "pestphp/pest": "^1.22|^2.0|^3.0",
+        "pestphp/pest-plugin-parallel": "^1.2"
     },
     "autoload": {
         "psr-4": {