diff --git a/.gitmodules b/.gitmodules
index 492853a..9f023e6 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,4 @@
 [submodule "CAN_Request-Response_protocol"]
 	path = CAN_Request-Response_protocol
 	url = https://git.arktika.cyou/Tenocha/CAN_Request-Response_protocol.git
+	branch = main