diff --git a/repositories.txt b/repositories.txt
index 28b8771d..e6f5438d 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -1734,6 +1734,7 @@ https://github.com/finson-release/FirmataWithDeviceFeature
 https://github.com/finson-release/Luni
 https://github.com/fire0shadow/SevSegSPI
 https://github.com/fire1/PulseCom
+https://github.com/firechip/Firechip_Analog_Devices_MAX14521E_Arduino_Library
 https://github.com/firmata/arduino
 https://github.com/firmata/ConfigurableFirmata
 https://github.com/FirstBuild/Relay