diff --git a/jquery.mjs.nestedSortable.js b/jquery.mjs.nestedSortable.js
index f04f21e..9345e02 100644
--- a/jquery.mjs.nestedSortable.js
+++ b/jquery.mjs.nestedSortable.js
@@ -18,7 +18,7 @@
 		// AMD. Register as an anonymous module.
 		define([
 			"jquery",
-			"jquery-ui/ui/sortable"
+			"jquery-ui/ui/widgets/sortable"
 		], factory );
 	} else {