diff --git a/composer.json b/composer.json
index 200f27be..22782b3d 100644
--- a/composer.json
+++ b/composer.json
@@ -35,7 +35,7 @@
         "cakephp/cakephp": "^5.1.0",
         "cakephp/cakephp-codesniffer": "^5.0",
         "firebase/php-jwt": "^6.2",
-        "phpunit/phpunit": "^10.5.5 || ^11.1.3"
+        "phpunit/phpunit": "^10.5.5 || ^11.1.3 || ^12.0.9"
     },
     "suggest": {
         "ext-ldap": "Make sure this php extension is installed and enabled on your system if you want to use the built-in LDAP adapter for \"LdapIdentifier\".",