diff --git a/HISTORY.md b/HISTORY.md
index 1a5f03a9..710f2506 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -5,6 +5,7 @@ Here's Cloudflare incidents.
 [//]: # (do not edit me; start)
 
 
+- 2021-04-11: [Network Performance Issues in Incheon (ICN), South Korea](https://www.cloudflarestatus.com/incidents/cm4yk2ztmjkg)
 - 2021-04-09: [SSL handshake failures in the China region](https://www.cloudflarestatus.com/incidents/zjg9cr3pw40h)
 - 2021-04-08: [Cloudlare DNS NODATA change](https://www.cloudflarestatus.com/incidents/x4v5d51wpcnr)
 - 2021-04-08: [Browser isolation service degraded](https://www.cloudflarestatus.com/incidents/14rjb6jf7mwh)