diff --git a/repositories.txt b/repositories.txt
index 2a93683c..8fcab5b1 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -8253,3 +8253,4 @@ https://github.com/HarutoHiroki/VFDDisplay
 https://github.com/steveeidemiller/SE_BME680
 https://github.com/BestModules-Libraries/BME36M280A
 https://github.com/BestModules-Libraries/BM62S6021-1
+https://github.com/teldrive-jpg/modbusmaster-GigaR1