diff --git a/repositories.txt b/repositories.txt
index a932cdd2..888fbf03 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -4047,3 +4047,4 @@ https://github.com/Matrix-Robotics/MatrixMotionSensor
 https://github.com/khoih-prog/WebServer_WT32_ETH01
 https://github.com/tig/FlashStringTable
 https://github.com/radariq/arduino-library
+https://gitlab.com/riva-lab/fastIO