diff --git a/composer.json b/composer.json
index 9d1628b3..857fc51b 100644
--- a/composer.json
+++ b/composer.json
@@ -60,7 +60,7 @@
   },
   "require-dev": {
     "ext-curl": "*",
-    "phpunit/phpunit": "^5.7 | ^6.0 | ^7.0 | ^8.0 | ^9.0",
+    "phpunit/phpunit": "^11.5.2",
     "phpunit/php-invoker": "*",
     "phpmd/phpmd": "@stable",
     "squizlabs/php_codesniffer": "3.*@stable",