diff --git a/ESP-IDF_Robot/main/blink_example_main.c b/ESP-IDF_Robot/main/blink_example_main.c
index 9a92a2504..4256f335e 100644
--- a/ESP-IDF_Robot/main/blink_example_main.c
+++ b/ESP-IDF_Robot/main/blink_example_main.c
@@ -5,6 +5,7 @@
     Date:       Dec 21, 2024
 
     Updated:    Jan 10, 2025
+                Jun 26, 2025
 
     built-in LED GPIO:          10
     build-in push button GPIO:  3