diff --git a/src/main.cpp b/src/main.cpp
index 9210b1c..87077d1 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -12,7 +12,7 @@ const uint32_t connectTimeoutMs = 5000;
 // MQTT settings
 const char* mqttServer = "iot.tanshu.com";
 const int mqttPort = 1883;
-const char* mqttClientId = "s2-bgy";
+const char* mqttClientId = "s5-orb";
 const char* mqttUser = "esp8266";
 const char* mqttPassword = "esp8266";