diff --git a/src/ServerRequest.php b/src/ServerRequest.php
index b09c6ca..659bec9 100644
--- a/src/ServerRequest.php
+++ b/src/ServerRequest.php
@@ -552,7 +552,7 @@ public function getMediaTypeParams(): array
      * Note: This method is not part of the PSR-7 standard.
      *
      * @param  string $key The parameter key.
-     * @param  string $default The default value.
+     * @param  mixed  $default The default value.
      *
      * @return mixed The parameter value.
      */