diff --git a/composer.json b/composer.json
index a549791d777..3116c7efa4b 100644
--- a/composer.json
+++ b/composer.json
@@ -188,7 +188,7 @@
         "phpspec/phpspec": "^7.0",
         "phpstan/phpstan": "0.12.82",
         "phpstan/phpstan-doctrine": "0.12.33",
-        "phpunit/phpunit": "^8.5",
+        "phpunit/phpunit": "^9.5",
         "psalm/plugin-mockery": "0.7.0",
         "psr/event-dispatcher": "^1.0",
         "stripe/stripe-php": "^6.43",