diff --git a/repositories.txt b/repositories.txt
index 3d0d718b..d6aa9d71 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -8528,3 +8528,4 @@ https://github.com/Bridgetek/EVE5-Arduino-Dev
 https://github.com/Bridgetek/EVE1-Arduino-Dev
 https://github.com/TamsinRose/CAN_Message_Arduino
 https://github.com/stm32duino/X-NUCLEO-IKS5A1
+https://github.com/fermeridamagni/arduino-minimal-ultrasonic