diff --git a/composer.json b/composer.json
index c003937..a055a19 100644
--- a/composer.json
+++ b/composer.json
@@ -50,7 +50,7 @@
         "phpstan/phpstan": "^1.8.4",
         "phpstan/phpstan-doctrine": "^1.3.2",
         "phpstan/phpstan-webmozart-assert": "^1.1",
-        "phpunit/phpunit": "^8.5",
+        "phpunit/phpunit": "^9.6",
         "polishsymfonycommunity/symfony-mocker-container": "^1.0",
         "stripe/stripe-php": "^6.43",
         "sylius-labs/coding-standard": "^4.0",