diff --git a/repositories.txt b/repositories.txt
index 436c8c853..b9425a6e3 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -121,7 +121,6 @@ https://github.com/pervu/FIFObuf
 https://github.com/orkungedik/kmeans
 https://github.com/JulyIghor/PinButtonEvents
 https://github.com/Witty-Wizard/DriveMaster
-https://github.com/HackerNowful/SD-Ducky
 https://github.com/Karibura-Cyber/NHBot
 https://github.com/locple/LiquidCrystal_I2C_UTF8
 https://github.com/Witty-Wizard/SerialIO