diff --git a/HISTORY.md b/HISTORY.md
index ae499c45bd..7b8f9bea17 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -7,6 +7,7 @@ Here's some of Cloudflare incidents.
 [//]: # (do not edit me; start)
 
 
+- 2023-04-05: [Advanced Certificate Manager orders having TLS termination failures with ECDSA ciphers](https://web.archive.org/web/https://www.cloudflarestatus.com/incidents/p0m9zswhrh17)
 - 2023-04-05: [Network Performance Issues](https://web.archive.org/web/https://www.cloudflarestatus.com/incidents/b3rh86sp2f2x)
 - 2023-04-03: [Possible Network Congestion in DME](https://web.archive.org/web/https://www.cloudflarestatus.com/incidents/l9qshhv7fjpw)
 - 2023-03-27: [Increased HTTP 500 Errors in India](https://web.archive.org/web/https://www.cloudflarestatus.com/incidents/31fss6hx0txn)