diff --git a/repositories.txt b/repositories.txt
index 02e5f389..92165414 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -1,3 +1,4 @@
+https://github.com/tdk-invn-oss/ultrasonic.arduino.CHx01
 https://github.com/stefangs/arduino-library-at24cxxx
 https://github.com/huemonelab/HuemonelabKit
 https://github.com/CIRCUITSTATE/CSE_GNSS