From 6669b95a4e4a805aee274a45c5c19ba275ff34a9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=99=88=E4=B8=89?= <chenxsan@users.noreply.github.com>
Date: Wed, 8 Mar 2017 03:19:55 +0800
Subject: [PATCH] Updated the deprecated arguments (#4306)

---
 docs/using.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/using.rst b/docs/using.rst
index 104c688e7..e579a70b7 100644
--- a/docs/using.rst
+++ b/docs/using.rst
@@ -155,8 +155,8 @@ order to perform domain validation, so you may need to stop your
 existing webserver. To control which port the plugin uses, include
 one of the options shown below on the command line.
 
-    * ``--standalone-supported-challenges http-01`` to use port 80
-    * ``--standalone-supported-challenges tls-sni-01`` to use port 443
+    * ``--preferred-challenges http-01`` to use port 80
+    * ``--preferred-challenges tls-sni-01`` to use port 443
 
 It must still be possible for your machine to accept inbound connections from
 the Internet on the specified port using each requested domain name.