diff --git a/.gitmodules b/.gitmodules
index 0199a608d..d64bb8ffe 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "cot"]
 	path = cot
-	url = git@github.com:coteditor/cot.git
+	url = https://github.com/coteditor/cot.git