diff --git a/composer.json b/composer.json
index 1587d20..0de18c1 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,7 @@
   "require-dev": {
     "php-di/php-di": "^7.0",
     "phpstan/phpstan": "^2.1",
-    "phpunit/phpunit": "^10.5",
+    "phpunit/phpunit": "^12.0",
     "squizlabs/php_codesniffer": "^3.11",
     "vimeo/psalm": "^6.5"
   },