diff --git a/repositories.txt b/repositories.txt
index 797ff068..2167d0d2 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -4279,4 +4279,4 @@ https://github.com/khoih-prog/SAMDUE_Slow_PWM
 https://github.com/khoih-prog/STM32_Slow_PWM
 https://github.com/shkoo/MeshGnome
 https://github.com/khoih-prog/STM32_PWM
-
+https://github.com/michpro/XTEA-Cipher