diff --git a/composer.json b/composer.json
index 595db751..967ecfe9 100644
--- a/composer.json
+++ b/composer.json
@@ -35,7 +35,7 @@
         "phpstan/phpstan": "^1.12.4",
         "phpstan/phpstan-phpunit": "^1.4.0",
         "phpstan/phpstan-strict-rules": "^1.6.1",
-        "phpunit/phpunit": "^11.3.6"
+        "phpunit/phpunit": "^11.3.6 || ^12.0.0"
     },
     "autoload": {
         "psr-4": {