diff --git a/registry.txt b/registry.txt
index 82e91433..1c284f23 100644
--- a/registry.txt
+++ b/registry.txt
@@ -4780,3 +4780,5 @@ https://github.com/sparkfun/SparkFun_SGP4_Arduino_Library.git|Contributed|SparkF
 https://github.com/sparkfun/SparkFun_Swarm_Satellite_Arduino_Library.git|Contributed|SparkFun Swarm Satellite Arduino Library
 https://github.com/ruiseixasm/Versatile_RotaryEncoder.git|Contributed|Versatile_RotaryEncoder
 https://github.com/akkoyun/I2C_Scanner.git|Contributed|I2C_Scanner
+https://github.com/DFRobot/DFRobot_PH.git|Contributed|DFRobot_PH
+https://github.com/DFRobot/DFRobot_BC20_Gravity.git|Contributed|DFRobot_BC20_Gravity