diff --git a/HISTORY.md b/HISTORY.md
index 1b660d2121..230a9a4afd 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -7,6 +7,7 @@ Here's some of Cloudflare incidents. You can avoid those problems by not using C
 [//]: # (do not edit me; start)
 
 
+- 2023-11-10: [Increased 5xx errors from Denver (DEN)](https://web.archive.org/web/https://www.cloudflarestatus.com/incidents/wxt6hmx7yhsq)
 - 2023-11-09: [Issues with Menlo Security's Browser Isolation](https://web.archive.org/web/https://www.cloudflarestatus.com/incidents/p3tk9m2zz5h3)
 - 2023-11-09: [Issues with Security Insights](https://web.archive.org/web/https://www.cloudflarestatus.com/incidents/rcpvtc0b0921)
 - 2023-11-09: [Cloudflare R2 Increased Errors](https://web.archive.org/web/https://www.cloudflarestatus.com/incidents/lf8ccyy0zvd3)