diff --git a/.gitmodules b/.gitmodules
index 76bdf3c..9ad86bc 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -12,4 +12,4 @@
 	url = https://github.com/vdirsyncer/davical-testserver
 [submodule "tests/storage/servers/nextcloud"]
 	path = tests/storage/servers/nextcloud
-	url = git@github.com:vdirsyncer/nextcloud-testserver
+	url = https://github.com/vdirsyncer/nextcloud-testserver