diff --git a/composer.json b/composer.json
index 92bde78..8c36594 100644
--- a/composer.json
+++ b/composer.json
@@ -20,7 +20,7 @@
         "composer/composer": ">=1.9.0 <2.3.0",
         "laminas/laminas-coding-standard": "~2.5.0",
         "mikey179/vfsstream": "^1.6.11",
-        "phpunit/phpunit": "^9.5.5",
+        "phpunit/phpunit": "^11.0.0",
         "psalm/plugin-phpunit": "^0.18.0",
         "roave/security-advisories": "dev-master",
         "vimeo/psalm": "^4.5"