diff --git a/content/pong/ball/bouncing/_index.md b/content/pong/ball/bouncing/_index.md
index ac146be..cb9b5d8 100644
--- a/content/pong/ball/bouncing/_index.md
+++ b/content/pong/ball/bouncing/_index.md
@@ -18,7 +18,7 @@ All of our objects are rectangles so a simple AABB (axis-aligned bounding box) c
 
 Hang on a sec though - this is a pretty standard problem right? Pretty much every game in existence uses collision detection. There's got to be something we can use...
 
-Well, you're in luck, because I wrote a collision detection system called MoonTools.Bonk! https://moontools-docs.github.io/bonk/
+Well, you're in luck, because [I wrote a collision detection system called MoonTools.Bonk!](http://moonside.games/docs/bonk/)
 
 Let's start by integrating it. We can add the framework as a *PackageReference* in PongFE.Framework.csproj: