diff --git a/.gitmodules b/.gitmodules
index 1b82a67..f6ba8fa 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "servant/protocol"]
 	path = servant/protocol
-	url = git@github.com:TarsCloud/TarsProtocol.git
+	url = https://github.com/TarsCloud/TarsProtocol.git