diff --git a/repositories.txt b/repositories.txt
index 78b0e8c2..47838ab8 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -7302,3 +7302,4 @@ https://github.com/CMB27/ModbusADU
 https://github.com/CMB27/ModbusRTUComm
 https://github.com/Zhentao-Lin/ESP32_WS2812_Lib
 https://github.com/stack-chan/stackchan-arduino
+https://github.com/adbancroft/avr-fast-div