--- a/.gitmodules
+++ b/.gitmodules
@@ -3,5 +3,5 @@
 	url = git://github.com/uskr/pynma.git
 [submodule "js/flotr2"]
 	path = js/flotr2
-	url = git://github.com/HumbleSoftware/Flotr2.git
+	url = https://github.com/HumbleSoftware/Flotr2.git