diff --git a/registry.txt b/registry.txt
index af7c3bf6..4af3d2aa 100644
--- a/registry.txt
+++ b/registry.txt
@@ -7820,3 +7820,4 @@ https://github.com/CentyLab/AP33772S-CentyLab.git|Contributed|AP33772S
 https://github.com/ridiculousfish/libdivide.git|Contributed|libdivide
 https://github.com/crozone-technology/TelegramESP32.git|Contributed|TelegramESP32
 https://github.com/mawaeg/Arduino_RV-8523.git|Contributed|RV8523
+https://github.com/steins1997/arduino_uno_r4_minima_mcp2517fd.git|Contributed|R4_LIB_FOR_MCP2517FD