diff --git a/.gitmodules b/.gitmodules
index b674afdd4..b3e38cc89 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "readium-js"]
 	path = readium-js
-	url = git@github.com:readium/readium-js.git
+	url = https://github.com/readium/readium-js.git