diff --git a/composer.json b/composer.json
index 9c3e52e..d1b2b04 100644
--- a/composer.json
+++ b/composer.json
@@ -20,7 +20,7 @@
     "php": "^7.4 || ^8.0"
   },
   "require-dev": {
-    "phpunit/phpunit": "9.5.26"
+    "phpunit/phpunit": "11.3.4"
   },
   "autoload": {
     "psr-4": {