diff --git a/composer.json b/composer.json
index eb4ea40..3617515 100755
--- a/composer.json
+++ b/composer.json
@@ -19,7 +19,7 @@
         "friendsofphp/php-cs-fixer": "^3.4",
         "php-coveralls/php-coveralls": "^2.7",
         "phpstan/phpstan": "^2.0",
-        "phpunit/phpunit": "^9.0",
+        "phpunit/phpunit": "^12.0",
         "squizlabs/php_codesniffer": "^3.11"
     },
     "config": {