diff --git a/registry.txt b/registry.txt
index 9b8bae02..d242f942 100644
--- a/registry.txt
+++ b/registry.txt
@@ -6033,3 +6033,4 @@ https://github.com/m5stack/PoE_CAM-Ethernet.git|Contributed|PoE_CAM-Ethernet
 https://github.com/vindar/ILI9342_T4.git|Contributed|ILI9342_T4
 https://github.com/m5stack/M5Unit-DigiClock.git|Contributed|M5Unit-DigiClock
 https://github.com/epsilonrt/RadioHead.git|Contributed|RadioHead
+https://github.com/sakura-internet/sipf-arduino-client.git|Contributed|sipf-arduino-client