diff --git a/.gitmodules b/.gitmodules
index 2ddc93ceb..da8f10e54 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "ci/docker/ruby-install"]
 	path = ci/docker/ruby-install
-	url = git@github.com:postmodern/ruby-install.git
+	url = https://github.com/postmodern/ruby-install.git