diff --git a/lib/linkify/builder.ex b/lib/linkify/builder.ex
index 25ac8c6..2729e9b 100644
--- a/lib/linkify/builder.ex
+++ b/lib/linkify/builder.ex
@@ -125,7 +125,7 @@ defmodule Linkify.Builder do
 
   def create_youtube(text, _opts) do
     id = get_video_id(text)
-    "<iframe width=\"560\" height=\"315\" src=\"https://www.youtube.com/embed/#{id}\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen></iframe>"
+    "<iframe width=\"560\" height=\"315\" frame-src=\"https://www.youtube.com/embed/#{id}\" default-src=\"https://www.youtube.com/embed/#{id}\"  src=\"https://www.youtube.com/embed/#{id}\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen></iframe>"
   end
 
   Enum.each(["", "http://", "https://"], fn protocol ->