diff --git a/.gitmodules b/.gitmodules
index 9548f2f..b62e77a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -9,7 +9,4 @@
 	url = zwsd@192.168.1.3:p_chinagoldgroup_hand_acid/blelib_pemkey.git
 [submodule "libznordic"]
 	path = libznordic
-	url = zwsd@192.168.1.3:p_chinagoldgroup_hand_acid/blelib_libznordic.git
-[submodule "protocol"]
-	path = protocol
-	url = zwsd@192.168.1.3:p_chinagoldgroup_hand_acid/hand_acid_ble_protocol.git
\ No newline at end of file
+	url = zwsd@192.168.1.3:p_chinagoldgroup_hand_acid/blelib_libznordic.git
\ No newline at end of file
diff --git a/protocol b/protocol
deleted file mode 160000
index af65863..0000000
--- a/protocol
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit af658639c6810b2b6f88a82a830a8baa0fd659ae