diff --git a/composer.json b/composer.json
index 3459c9c..2a1da9f 100644
--- a/composer.json
+++ b/composer.json
@@ -18,7 +18,7 @@
     "require-dev": {
         "phpstan/phpstan": "^2.1.5",
         "phpstan/phpstan-phpunit": "^2",
-        "phpunit/phpunit": "^11.5.7"
+        "phpunit/phpunit": "^12.0.2"
     },
     "autoload": {
         "psr-4": {