diff --git a/composer.json b/composer.json
index 79e67f8e..0399feaa 100644
--- a/composer.json
+++ b/composer.json
@@ -25,7 +25,7 @@
     "php-parallel-lint/php-parallel-lint": "^1.2",
     "phpstan/phpstan-phpunit": "^0.12.16",
     "phpstan/phpstan-strict-rules": "^0.12.5",
-    "phpunit/phpunit": "^7.5.20",
+    "phpunit/phpunit": "^9.5.25",
     "symfony/console": "^4.0",
     "symfony/config": "^4.2",
     "symfony/framework-bundle": "^4.0",