diff --git a/composer.json b/composer.json
index a5ce3e4..9833e7f 100644
--- a/composer.json
+++ b/composer.json
@@ -45,7 +45,7 @@
         "ext-json": "*",
         "laminas/laminas-coding-standard": "~2.5.0",
         "laminas/laminas-diactoros": "^3.3",
-        "phpunit/phpunit": "^10.4.2",
+        "phpunit/phpunit": "^11.0.0",
         "psalm/plugin-phpunit": "^0.18.4",
         "vimeo/psalm": "^5.15"
     },