diff --git a/composer.json b/composer.json
index 93a987c..5baed6d 100644
--- a/composer.json
+++ b/composer.json
@@ -20,7 +20,7 @@
   },
   "require-dev": {
     "phpstan/phpstan": "^2.0",
-    "phpunit/phpunit": "^12.0",
+    "phpunit/phpunit": "^13.0",
     "phpstan/phpstan-strict-rules": "^2.0",
     "rector/rector": "^2.0"
   },