diff --git a/registry.txt b/registry.txt
index 5b352338..4fb6d6af 100644
--- a/registry.txt
+++ b/registry.txt
@@ -4390,3 +4390,4 @@ https://github.com/khoih-prog/Portenta_H7_AsyncUDP.git|Contributed|Portenta_H7_A
 https://github.com/mkhuthir/Si4703.git|Contributed|Si4703
 https://github.com/tamctec/gt911-arduino.git|Contributed|TAMC_GT911
 https://github.com/FrankBoesing/FastCRC.git|Contributed|FastCRC
+https://github.com/hideakitai/ArduinoEigen.git|Contributed|Eigen