diff --git a/404.md b/404.md
index 5524f8b..0a785f9 100644
--- a/404.md
+++ b/404.md
@@ -89,8 +89,6 @@ add a lower bound -- this is useful if you want to respond to a previous event.
 Clients can display a warning indicating that an event is deniable and uncertain. They can also show how much time has 
 passed since the challenge was published. Clients may choose to stop displaying events that are too old or uncertain.
 
-This feature can integrate with [NIP-44](40.md) to enhance the user experience.
-
 ---
 
 ### Relays