diff --git a/.gitmodules b/.gitmodules
index 0ffe8a5..7da38cd 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,6 +1,6 @@
 [submodule "datastructures"]
 	path = datastructures
-	url = git@git.topost.net:alistair/datastructures.git
+	url = https://git.topost.net/alistair/datastructures.git
 [submodule "c-colours"]
 	path = c-colours
-	url = git@git.topost.net:alistair/c-colours.git
+	url = https://git.topost.net/alistair/c-colours.git