diff --git a/.gitmodules b/.gitmodules
index b05e2fb..7c0fbb8 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "mbed-os"]
 	path = mbed-os
-	url = git@github.com:ARMmbed/mbed-os.git
+	url = https://github.com/ARMmbed/mbed-os.git