diff --git a/.gitmodules b/.gitmodules
index 72f116b..c0b5242 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "tools/htmlize.sh"]
 	path = tools/htmlize.sh
-	url = git://github.com/vy/htmlize.sh.git
+	url = https://github.com/vy/htmlize.sh.git