diff --git a/repositories.txt b/repositories.txt
index 9e853e87..ad7ad6a4 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -1,3 +1,4 @@
+https://github.com/semilimes/semilimes_mcu_sdk
 https://github.com/zwieblum/ch32_deep_sleep
 https://github.com/microbotsio/CodeCell
 https://github.com/EduKits/ColourKit