diff --git a/ESP-IDF_mqtt-ssl/main/app_main.c b/ESP-IDF_mqtt-ssl/main/app_main.c
index 02956f603..f1df570af 100644
--- a/ESP-IDF_mqtt-ssl/main/app_main.c
+++ b/ESP-IDF_mqtt-ssl/main/app_main.c
@@ -112,7 +112,7 @@ static void mqtt_event_handler(void *handler_args, esp_event_base_t base, int32_
 static void mqtt_app_start(void)
 {
   const esp_mqtt_client_config_t mqtt_cfg = {
-    .broker.address.uri = "mqtts://test.mosquitto.org:8884",
+    .broker.address.uri = "mqtts://techquadbit.ddns.net:8884",
     .broker.verification.certificate = (const char *)server_cert_pem_start,
     .credentials = {
       .authentication = {