diff --git a/composer.json b/composer.json
index f84411e1..a945d5be 100644
--- a/composer.json
+++ b/composer.json
@@ -32,7 +32,7 @@
         "roave/security-advisories": "dev-latest",
         "friendsofphp/php-cs-fixer": "^3.0",
         "phpstan/phpstan": "^2.0.4",
-        "phpunit/phpunit": "^10.1.0|^11.0",
+        "phpunit/phpunit": "12.5.3",
         "guzzlehttp/guzzle": "^7.8",
         "behat/behat": "^3.13",
         "galbar/jsonpath": "^3.0",