diff --git a/.gitmodules b/.gitmodules
index 0c1a2eedf..793bd846b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -28,4 +28,4 @@
 [submodule "APP_Framework/lib/lorawan/lorawan_devicenode"]
 	path = APP_Framework/lib/lorawan/lorawan_devicenode
 	url = https://gitlink.org.cn/IACU/lorawan_devicenode.git
-	branch = master
\ No newline at end of file
+	branch = work
\ No newline at end of file