diff --git a/test/web/activity_pub/transmogrifier_test.exs b/test/web/activity_pub/transmogrifier_test.exs
index 26e8d60fe..cc1781403 100644
--- a/test/web/activity_pub/transmogrifier_test.exs
+++ b/test/web/activity_pub/transmogrifier_test.exs
@@ -67,7 +67,7 @@ defmodule Pleroma.Web.ActivityPub.TransmogrifierTest do
 
       object =
         data["object"]
-        |> Map.put("inReplyTo", "https://nonexistent.space/whatever")
+        |> Map.put("inReplyTo", "https://404.site/whatever")
 
       data =
         data