diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9136b696b..0fce7bcab 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,7 @@
 #### Features
 
 - [#5842](https://github.com/influxdata/telegraf/pull/5842): Improve performance of wavefront serializer.
+- [#5863](https://github.com/influxdata/telegraf/pull/5863): Allow regex processor to append tag values.
 
 #### Bugfixes