diff --git a/repositories.txt b/repositories.txt
index 1803c9fc..9e853e87 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -1,3 +1,4 @@
+https://github.com/zwieblum/ch32_deep_sleep
 https://github.com/microbotsio/CodeCell
 https://github.com/EduKits/ColourKit
 https://github.com/makkorjamal/PLSduino