diff --git a/composer.json b/composer.json
index 950fb29..c849f2e 100644
--- a/composer.json
+++ b/composer.json
@@ -15,7 +15,7 @@
         "psr/event-dispatcher": "^1"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.5",
+        "phpunit/phpunit": "^11.3",
         "squizlabs/php_codesniffer": "^3.7"
     },
     "autoload": {