diff --git a/registry.txt b/registry.txt
index e1799d39..470353dd 100644
--- a/registry.txt
+++ b/registry.txt
@@ -1708,3 +1708,4 @@ https://github.com/RoboticsBrno/ArduinoLearningKitStarter-library.git|Contribute
 https://github.com/maxpautsch/SvgParser.git|Contributed|SvgParser
 https://github.com/madhephaestus/Esp32SimplePacketComs.git|Contributed|Esp32SimplePacketComs
 https://github.com/taligentx/dscKeybusInterface.git|Contributed|DSC Keybus Interface
+https://github.com/stm32duino/STM32RTC.git|Contributed|STM32duino RTC