diff --git a/repositories.txt b/repositories.txt
index c7fc16ed..7c8f863b 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -1,3 +1,4 @@
+https://github.com/Lzw655/ESP32_IO_Expander
 https://github.com/govorox/SSLClient
 https://github.com/tedtoal/wiring_analog_SAMD_TT
 https://github.com/tedtoal/msToString