diff --git a/composer.json b/composer.json
index 32f2e38..6752cc1 100644
--- a/composer.json
+++ b/composer.json
@@ -37,7 +37,7 @@
     "thecodingmachine/phpstan-strict-rules": "^0.12.0",
     "php-http/mock-client": "^1.0",
     "php-http/guzzle6-adapter": "^1.1",
-    "doctrine/coding-standard": "^6.0"
+    "doctrine/coding-standard": "^6.0 || ^9.0"
   },
   "autoload" : {
     "psr-4" : {