diff --git a/composer.json b/composer.json
index 2497997..41baaf9 100644
--- a/composer.json
+++ b/composer.json
@@ -29,7 +29,7 @@
     "require-dev": {
         "laminas/laminas-coding-standard": "~2.5.0",
         "mikey179/vfsstream": "^1.6.11",
-        "phpunit/phpunit": "^10.4.2",
+        "phpunit/phpunit": "^11.0.0",
         "psalm/plugin-phpunit": "^0.19.0",
         "vimeo/psalm": "^5.15.0"
     },