diff --git a/registry.txt b/registry.txt
index 55e8c3ea..048057f0 100644
--- a/registry.txt
+++ b/registry.txt
@@ -2532,3 +2532,4 @@ https://github.com/JRVeale/function-fsm.git|Contributed|FunctionFsm
 https://github.com/kbernario/PaunaStepper.git|Contributed|PaunaStepper
 https://github.com/SoonerRobotics/RobotLib.git|Contributed|RobotLib
 https://github.com/sparkfun/SparkFun_Qwiic_Button_Arduino_Library.git|Contributed|SparkFun Qwiic Button and Qwiic Switch Library
+https://github.com/RyoKosaka/HelloDrum-arduino-Library.git|Contributed|Hello Drum