diff --git a/repositories.txt b/repositories.txt
index 4d4bc424..3a148b03 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -104,6 +104,7 @@ https://github.com/DFRobot/DFRobot_DS323X
 https://github.com/DFRobot/DFRobot_Lora
 https://github.com/DFRobot/DFRobot_CCS811
 https://github.com/DFRobot/DFRobot_VEML7700
+https://github.com/bheesma-10/mcp23017-arduino
 https://github.com/DFRobot/DFRobot_A111
 https://github.com/DFRobot/DFRobot_VisualRotaryEncoder
 https://github.com/DFRobot/DFRobot_ENS160