diff --git a/.gitmodules b/.gitmodules
index 75d404cf..529909ff 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "data/firefly_api"]
 	path = data/firefly_api
-	url = git://github.com/agurvich/firefly_api.git
+	url = https://github.com/agurvich/firefly_api.git