diff --git a/.gitmodules b/.gitmodules
index a3a5c44..30243ed 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,4 +1,4 @@
 [submodule "_external/data"]
 	path = _external/data
 	url = https://github.com/w3c/wai-website-data.git
-  branch = master
\ No newline at end of file
+  branch = main
\ No newline at end of file