diff --git a/repositories.txt b/repositories.txt
index ca7cbd1e3..cf9c83f9e 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -771,6 +771,7 @@ https://github.com/alikabeel/Letters-and-Numbers-Seven-Segment-Display-Library
 https://github.com/alireza7575/MKS_SERVO42
 https://github.com/alireza7575/MKS_SERVO57
 https://github.com/alkonosst/ADS1115
+https://github.com/alkonosst/MCP23017
 https://github.com/alkonosst/SettingsManagerESP32.git
 https://github.com/alkonosst/SSLClientESP32
 https://github.com/allenchak/TA6932