diff --git a/composer.json b/composer.json
index 7e5e213..04888a5 100644
--- a/composer.json
+++ b/composer.json
@@ -20,7 +20,7 @@
         "symfony/finder": "^4.4 || ^5.3 || ^6.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.6.13",
+        "phpunit/phpunit": "^9.6.15",
         "symfony/phpunit-bridge": "^7.0.0"
     },
     "autoload": {