diff --git a/src/Api.php b/src/Api.php
index 4da9d91..77b189e 100644
--- a/src/Api.php
+++ b/src/Api.php
@@ -205,7 +205,7 @@ class Api
                 'POST',
                 '/auth/credential',
                 $parameters,
-                false
+                true
             )
         );