diff --git a/.gitmodules b/.gitmodules
index c4c515f..18c1e67 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "isla"]
 	path = isla
-	url = git@github.com:rems-project/isla.git
+	url = ../../isla.git