diff --git a/repositories.txt b/repositories.txt
index f09d2bc3..96245029 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -8533,3 +8533,4 @@ https://github.com/stm32duino/X-NUCLEO-IKS5A1
 https://github.com/fermeridamagni/arduino-minimal-ultrasonic
 https://github.com/chipnorm/TM1637
 https://github.com/DavinderHanda/HandaDigitalSpeaker
+https://github.com/chipnorm/SHT21