diff --git a/registry.txt b/registry.txt
index 511cd61b..66285244 100644
--- a/registry.txt
+++ b/registry.txt
@@ -3531,3 +3531,4 @@ https://github.com/bitbank2/TIFF_G4.git|Contributed|TIFF_G4
 https://github.com/akkoyun/GE910.git|Contributed|Telit GE910 GSM Library
 https://github.com/khoih-prog/NTPClient_Generic.git|Contributed|NTPClient_Generic
 https://github.com/adafruit/Adafruit_EMC2101.git|Contributed|Adafruit EMC2101
+https://github.com/xreef/PCF8575_library.git|Contributed|PCF8575 library