diff --git a/repositories.txt b/repositories.txt
index ea1b32d5..f81241f8 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -9,6 +9,7 @@ https://github.com/PowerBroker2/MotorController
 https://github.com/MrYsLab/NanoConnectHcSr04
 https://github.com/Tinyu-Zhao/TinyGPSPlus
 https://github.com/m5stack/M5_ADS1115
+https://github.com/m5stack/M5_AD9833
 https://github.com/m5stack/M5_BMM150
 https://github.com/MrYsLab/NeoPixelConnect
 https://github.com/bigsmalloverall/SimpleTaskManager