diff --git a/composer.json b/composer.json
index 8620514..fec179d 100644
--- a/composer.json
+++ b/composer.json
@@ -22,7 +22,7 @@
     "minimum-stability": "stable",
     "require": {},
     "require-dev": {
-        "phpunit/phpunit": "9.5.25"
+        "phpunit/phpunit": "11.4.3"
     },
     "scripts": {
         "test": "phpunit --coverage-text"