diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8da1f79fe..b113cae90 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -50,6 +50,7 @@
 - [#5453](https://github.com/influxdata/telegraf/pull/5453): Support Azure Sovereign Environments with endpoint_url option.
 - [#5472](https://github.com/influxdata/telegraf/pull/5472): Support configuring a default timezone in JSON parser.
 - [#5482](https://github.com/influxdata/telegraf/pull/5482): Add ceph_health metrics to ceph input.
+- [#5488](https://github.com/influxdata/telegraf/pull/5488): Add option to disable unique timestamp adjustment in grok parser.
 
 #### Bugfixes