diff --git a/registry.txt b/registry.txt
index b8daa799..5e07fe2e 100644
--- a/registry.txt
+++ b/registry.txt
@@ -4124,3 +4124,4 @@ https://github.com/cvmanjoo/AT24Cxx.git|Contributed|AT24Cxx
 https://github.com/ekkai/WizFi360.git|Contributed|WizFi360
 https://github.com/mathertel/RFCodes.git|Contributed|RFCodes
 https://github.com/arduino-libraries/Arduino_PortentaBreakoutLibrary.git|Arduino|Arduino_PortentaBreakoutCarrier
+https://github.com/sparkfun/SparkFun_SCD4x_Arduino_Library.git|Contributed|SparkFun SCD4x Arduino Library