diff --git a/composer.json b/composer.json
index e938e25..702fde0 100644
--- a/composer.json
+++ b/composer.json
@@ -32,7 +32,7 @@
         "laminas/laminas-validator": "^2.65.0",
         "phpstan/phpstan-deprecation-rules": "^2.0.3",
         "phpstan/phpstan-phpunit": "^2.0.11",
-        "phpunit/phpunit": "^11.5.48",
+        "phpunit/phpunit": "^12.5.6",
         "slam/php-cs-fixer-extensions": "^3.14.0"
     },
     "conflict": {