diff --git a/.gitmodules b/.gitmodules
index 1516069e2..16694cb31 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,3 @@
 [submodule "tests/reference-images"]
 	path = tests/reference-images
-	url = git@github.com:KDAB/kddockwidgets-reference-test-screenshots.git
+	url = https://github.com/KDAB/kddockwidgets-reference-test-screenshots.git