diff --git a/composer.json b/composer.json
index 1b71806..c907551 100644
--- a/composer.json
+++ b/composer.json
@@ -24,7 +24,7 @@
         "php": "^8.1"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.5",
+        "phpunit/phpunit": "^11.0",
         "phpspec/prophecy-phpunit": "^2.0",
         "squizlabs/php_codesniffer": "^3.6",
         "slevomat/coding-standard": "^8.0",