diff --git a/registry.txt b/registry.txt
index 54ff8ff5..43dd8b11 100644
--- a/registry.txt
+++ b/registry.txt
@@ -7520,3 +7520,4 @@ https://github.com/ncmreynolds/milesTag.git|Contributed|milesTag
 https://github.com/nhjschulz/cfsm.git|Contributed|CFSM
 https://github.com/bitcode-tech/uart_keyboard.git|Contributed|UART_Keyboard
 https://github.com/julio22011/EasyOledUI.git|Contributed|EasyOledUI
+https://github.com/DefHam140/ZModbusRTU.git|Contributed|ZModbusRTU