diff --git a/registry.txt b/registry.txt
index 1f30b02c..423212dc 100644
--- a/registry.txt
+++ b/registry.txt
@@ -2455,3 +2455,4 @@ https://github.com/kd8bxp/TheTroll.git|Contributed|TheTroll
 https://github.com/iagows/arduino_io.git|Contributed|Simple Repository IO
 https://github.com/AmbientDataInc/Ambient_ESP8266_lib.git|Contributed|Ambient ESP32 ESP8266 lib
 https://github.com/sparkfun/SparkFun_Qwiic_Relay_Arduino_Library.git|Contributed|SparkFun Qwiic Relay Arduino Library
+https://github.com/FortySevenEffects/serde.git|Contributed|Serde