diff --git a/registry.txt b/registry.txt
index 90a307c5..b6b77a0c 100644
--- a/registry.txt
+++ b/registry.txt
@@ -8251,3 +8251,4 @@ https://github.com/DFRobot/DFRobot_SFA40.git|Contributed|DFRobot_SFA40
 https://github.com/DFRobot/DFRobot_TM6605.git|Contributed|DFRobot_TM6605
 https://github.com/mabuware/MabuTrace.git|Contributed|MabuTrace
 https://github.com/DigitalCodesign/MentorBit-SGP30.git|Contributed|MentorBit-SGP30
+https://github.com/John-Karatka/DS1621.git|Contributed|DS1621