diff --git a/composer.json b/composer.json
index c64ee44d..d7e7c1bf 100644
--- a/composer.json
+++ b/composer.json
@@ -46,7 +46,7 @@
         "http-interop/http-factory-tests": "^0.9.0",
         "laminas/laminas-coding-standard": "^2.5",
         "php-http/psr7-integration-tests": "^1.2",
-        "phpunit/phpunit": "^9.5.28",
+        "phpunit/phpunit": "^10.0.0",
         "psalm/plugin-phpunit": "^0.18.4",
         "vimeo/psalm": "^5.6"
     },