diff --git a/composer.json b/composer.json
index 84a01b4..2f78616 100644
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,7 @@
         "psr/http-factory": "^1.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^10",
+        "phpunit/phpunit": "^10 || ^11 || ^12",
         "phpstan/phpstan": "^2",
         "laminas/laminas-diactoros": "^3",
         "friendsofphp/php-cs-fixer": "^3",