diff --git a/docs/en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS.md b/docs/en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS.md
index 162dd0b4..619de308 100644
--- a/docs/en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS.md
+++ b/docs/en/quick_start/m5core/m5stack_core_get_started_Arduino_MacOS.md
@@ -36,7 +36,7 @@ Open Arduino IDE, click `Arduino`->`Peferences`->`Settings`
 
 Copy the following last ESP32 Board Manager URL to this option `Additional Boards Manager URLs: `
 
-*NOW, last ESP32 board manager URL is "http://https//dl.espressif.com/dl/package_esp32_index.json"*
+*NOW, last ESP32 board manager URL is "https//dl.espressif.com/dl/package_esp32_index.json"*
 
 <img src="assets/img/getting_started_pics/m5stack_core/get_started_with_arduino_m5core/mac/quick_start_arduino_mac_03.png">
 
diff --git a/docs/en/quick_start/m5core/m5stack_core_get_started_Arduino_Windows.md b/docs/en/quick_start/m5core/m5stack_core_get_started_Arduino_Windows.md
index 644e7449..7907a5a4 100644
--- a/docs/en/quick_start/m5core/m5stack_core_get_started_Arduino_Windows.md
+++ b/docs/en/quick_start/m5core/m5stack_core_get_started_Arduino_Windows.md
@@ -26,7 +26,7 @@ Open Arduino IDE, and click `File`->`Peferences`->`Settings`
 
 Input last esp32 board manager URL
 
-*Now the last board manager URL: "http://https//dl.espressif.com/dl/package_esp32_index.json"*
+*Now the last board manager URL: "https//dl.espressif.com/dl/package_esp32_index.json"*
 
 <img src="assets/img/getting_started_pics/m5stack_core/get_started_with_arduino_m5core/windows/quick_start_arduino_win_03.png">