diff --git a/registry.txt b/registry.txt
index bcaee9a3..66f5465c 100644
--- a/registry.txt
+++ b/registry.txt
@@ -3741,3 +3741,4 @@ https://github.com/telleropnul/BigFont02_I2C.git|Contributed|BigFont02_I2C
 https://github.com/adafruit/Adafruit_HTU31D.git|Contributed|Adafruit HTU31D Library
 https://github.com/adafruit/Adafruit_SHT4X.git|Contributed|Adafruit SHT4x Library
 https://github.com/fbiego/ESP32Time.git|Contributed|ESP32Time
+https://github.com/RobTillaart/Multiplex.git|Contributed|Multiplex