diff --git a/lib/getHost.js b/lib/getHost.js
index b5e97b1..b0a46aa 100644
--- a/lib/getHost.js
+++ b/lib/getHost.js
@@ -1,4 +1,4 @@
-let availableDomain = 'update.reactnative.cn';
+let availableDomain = 'update.react-native.cn';
 
 function ping(domain, rejectImmediate) {
   return new Promise((resolve, reject) => {