diff --git a/composer.json b/composer.json
index cf8623fc4..c3ad18f2a 100644
--- a/composer.json
+++ b/composer.json
@@ -2,7 +2,7 @@
   "name": "ldap-account-manager/ldap-account-manager",
   "description": "LDAP Account Manager",
   "require-dev" : {
-    "phpunit/phpunit" : "^11",
+    "phpunit/phpunit" : "^12",
     "phpstan/phpstan": "^2",
     "rector/rector": "^2",
     "cyclonedx/cyclonedx-php-composer": "^6.0"