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
diff --git a/mjsim_quad b/mjsim_quad
index afafdac..104d84b 160000
--- a/mjsim_quad
+++ b/mjsim_quad
@@ -1 +1 @@
-Subproject commit afafdac362dc698d7ef2954831de4ccc62b91c27
+Subproject commit 104d84ba6a21bd5a66f674dc08a74f1b4cadc8b6