diff --git a/repositories.txt b/repositories.txt
index bfd7490f..b37845ce 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -152,6 +152,7 @@ https://github.com/m5stack/M5_RoverC
 https://github.com/m5stack/M5_JoyC
 https://github.com/m5stack/UNIT_UHF_RFID
 https://github.com/m5stack/DEMO-BOARD
+https://github.com/m5stack/ATOM_DTU_CAT1
 https://github.com/MrYsLab/NeoPixelConnect
 https://github.com/bigsmalloverall/SimpleTaskManager
 https://github.com/Infineon/arduino-multi-half-bridge