diff --git a/README.md b/README.md
index 7a03499..58bfeeb 100644
--- a/README.md
+++ b/README.md
@@ -6,6 +6,8 @@
 [![contributions welcome](https://img.shields.io/badge/contributions-welcome-brightgreen.svg?style=flat)](#Contributing)
 [![GitHub issues](https://img.shields.io/github/issues/khoih-prog/RTL8720_RTC.svg)](http://github.com/khoih-prog/RTL8720_RTC/issues)
 
+<a href="https://www.buymeacoffee.com/khoihprog6" target="_blank"><img src="https://cdn.buymeacoffee.com/buttons/v2/default-yellow.png" alt="Buy Me A Coffee" style="height: 60px !important;width: 217px !important;" ></a>
+
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@@ -98,8 +100,8 @@ The catch is **your function is now part of an ISR (Interrupt Service Routine),
 ## Prerequisites
 
 1. [`Arduino IDE 1.8.19+` for Arduino](https://github.com/arduino/Arduino). [![GitHub release](https://img.shields.io/github/release/arduino/Arduino.svg)](https://github.com/arduino/Arduino/releases/latest)
-2. [`Arduino AmebaD core 3.1.1+`](https://github.com/ambiot/ambd_arduino) for Realtek RTL8720DN, RTL8722DM and RTL8722CSM. [![GitHub release](https://img.shields.io/github/release/ambiot/ambd_arduino.svg)](https://github.com/ambiot/ambd_arduino/releases/latest)
-3. [`Timezone_Generic library v1.9.0+`](https://github.com/khoih-prog/Timezone_Generic) to use examples using Timezone. To install, check [![arduino-library-badge](https://www.ardu-badge.com/badge/Timezone_Generic.svg?)](https://www.ardu-badge.com/Timezone_Generic)
+2. [`Arduino AmebaD core 3.1.2+`](https://github.com/ambiot/ambd_arduino) for Realtek RTL8720DN, RTL8722DM and RTL8722CSM. [![GitHub release](https://img.shields.io/github/release/ambiot/ambd_arduino.svg)](https://github.com/ambiot/ambd_arduino/releases/latest)
+3. [`Timezone_Generic library v1.9.1+`](https://github.com/khoih-prog/Timezone_Generic) to use examples using Timezone. To install, check [![arduino-library-badge](https://www.ardu-badge.com/badge/Timezone_Generic.svg?)](https://www.ardu-badge.com/Timezone_Generic)
 4. [`WiFiWebServer_RTL8720 library v1.1.1+`](https://github.com/khoih-prog/WiFiWebServer_RTL8720) WiFi to access NTP server. To install. check [![arduino-library-badge](https://www.ardu-badge.com/badge/WiFiWebServer_RTL8720.svg?)](https://www.ardu-badge.com/WiFiWebServer_RTL8720).
 
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