diff --git a/patchnotes.md b/patchnotes.md
index 8d5da5b0..9b4f8ffc 100644
--- a/patchnotes.md
+++ b/patchnotes.md
@@ -17,6 +17,7 @@ Patch goals include:
 ## Latest content
 - [Pr0totype #21 - The Hammer Falls!](https://youtu.be/EXoWdTvHwiw)
 - [Pr0totype #22 - A Story About My Ackmed](https://youtu.be/KFucu-iXi8E)
+- [Pr0totype #23 - Cartographic Crapcast](https://youtu.be/Sq5hKyM2POI)
 
 ## Game modes
 - Added a 'Debug' game mode that maxes out starting resources and significantly speeds up build times.