diff --git a/repositories.txt b/repositories.txt
index 54b416f4..02965b53 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -4192,6 +4192,7 @@ https://github.com/iotkaran/Arduino
 https://github.com/levkovigor/LTR390
 https://github.com/1452206376/CH9328-Keyboard
 https://github.com/9glt/arduino-attiny85-mcp23017-library
+https://github.com/9glt/arduino-attiny85-fastpin-library
 https://github.com/khoih-prog/FS_Nano33BLE
 https://github.com/EscapeAutomate/ArduinoLib
 https://github.com/107-systems/107-Arduino-BoostUnits