diff --git a/ESP-IDF_Robot/main/blink_example_main.c b/ESP-IDF_Robot/main/blink_example_main.c
index 39d53011e..58f898dd1 100644
--- a/ESP-IDF_Robot/main/blink_example_main.c
+++ b/ESP-IDF_Robot/main/blink_example_main.c
@@ -6,7 +6,7 @@
 
     Updated:    Jan 10, 2025
                 Jun 26, 2025
-                Jul 26, 2025 (ESP-IDF + WiFi)
+                Jul 26, 2025 (ESP-IDF + MQTT + WiFi)
 
     built-in LED GPIO:          10
     build-in push button GPIO:  3