diff --git a/composer.json b/composer.json
index c8e733f..f4933d8 100644
--- a/composer.json
+++ b/composer.json
@@ -26,7 +26,7 @@
         "phpstan/phpstan": "^2.0",
         "phpstan/phpstan-phpunit": "^2.0",
         "phpstan/phpstan-strict-rules": "^2.0",
-        "phpunit/phpunit": "^11.4"
+        "phpunit/phpunit": "^12.0"
     },
     "autoload": {
         "psr-4": {