diff --git a/.gitmodules b/.gitmodules
index 523e909..18aaa6b 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "mjsim_quad"]
 	path = mjsim_quad
-	url = https://github.com/nimesh00/mjsim_quad.git
+	url = git@github.com:nimesh00/mjsim_quad.git