diff --git a/composer.json b/composer.json
index e91c7b1..2e8afe0 100644
--- a/composer.json
+++ b/composer.json
@@ -23,7 +23,7 @@
     "require-dev": {
         "doctrine/coding-standard": "^14.0.0",
         "php-standard-library/psalm-plugin": "^2.2.1",
-        "phpunit/phpunit": "^9.6.12",
+        "phpunit/phpunit": "^13.0.0",
         "psalm/plugin-phpunit": "^0.19.0",
         "roave/infection-static-analysis-plugin": "^1.32.0",
         "squizlabs/php_codesniffer": "^4.0.0",