diff --git a/src/Provider/AbstractProvider.php b/src/Provider/AbstractProvider.php
index 293a54d6..4f9e203d 100644
--- a/src/Provider/AbstractProvider.php
+++ b/src/Provider/AbstractProvider.php
@@ -815,7 +815,7 @@ abstract protected function checkResponse(ResponseInterface $response, $data);
      * Custom mapping of expiration, etc should be done here. Always call the
      * parent method when overloading this method.
      *
-     * @param  mixed $result
+     * @param  array<string, mixed> $result
      * @return array
      */
     protected function prepareAccessTokenResponse(array $result)