diff --git a/README.md b/README.md
index c6eaa5b..cb3125c 100644
--- a/README.md
+++ b/README.md
@@ -95,12 +95,9 @@ Pay attention to the following settings:
   machine by the public ip. default: IP of NETWORK_DEVICE.
 - USER_IP : the ip of user server. default : localhost
 - MASTER_IPS : tell the web server the ips of all the cluster master.
-- OPEN_REGISTRY : whether allow user to register a new account.
 - AUTH_KEY: the key to request users server from master, or to request
   master from users server. Please set the same value on each machine.
   Please don't use the default value.
-- APPROVAL_RBT: whether to start the approval robot that will approve
-  beans applications from users automatically.
 
 ## Start ##