diff --git a/app/src/main/java/com/yinuo/safetywatcher/watcher/services/HeartbeatService.kt b/app/src/main/java/com/yinuo/safetywatcher/watcher/services/HeartbeatService.kt
index 17076bd..1e8f420 100644
--- a/app/src/main/java/com/yinuo/safetywatcher/watcher/services/HeartbeatService.kt
+++ b/app/src/main/java/com/yinuo/safetywatcher/watcher/services/HeartbeatService.kt
@@ -104,7 +104,7 @@ class HeartbeatService : IntentService("HeartbeatService") {
         return try {
             val timeoutMs = 2500
             val sock = Socket()
-            val sockaddr: SocketAddress = InetSocketAddress("8.8.8.8", 53)
+            val sockaddr: SocketAddress = InetSocketAddress("114.114.114.114", 53)
             sock.connect(sockaddr, timeoutMs)
             sock.close()
             true