diff --git a/composer.json b/composer.json
index be6b3bd..888dc68 100644
--- a/composer.json
+++ b/composer.json
@@ -17,7 +17,7 @@
 		"php-parallel-lint/php-parallel-lint": "^1.2",
 		"phpstan/phpstan-deprecation-rules": "^2.0",
 		"phpstan/phpstan-strict-rules": "^2.0",
-		"phpunit/phpunit": "^9.6"
+		"phpunit/phpunit": "^12.0"
 	},
 	"config": {
 		"sort-packages": true