diff --git a/2023/day04.md b/2023/day04.md
index 08fb585..a4a0f54 100644
--- a/2023/day04.md
+++ b/2023/day04.md
@@ -80,3 +80,5 @@ Also please add any additional resources.
 
 - [Introducing the InfoSec colour wheel — blending developers with red and blue security teams.](https://hackernoon.com/introducing-the-infosec-colour-wheel-blending-developers-with-red-and-blue-security-teams-6437c1a07700)
 
+
+See you on [Day 5](day05.md)