diff --git a/CHANGELOG.md b/CHANGELOG.md
index e27d9b938e..493166c000 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -33,6 +33,8 @@ release.
   ([#21](https://github.com/open-telemetry/semantic-conventions/pull/21))
 - Add `messaging.gcp_pubsub.message.ordering_key` attribute.
   ([#528](https://github.com/open-telemetry/semantic-conventions/pull/528))
+- Add `db.instance.id` attribute:
+  ([#345](https://github.com/open-telemetry/semantic-conventions/pull/345))
 
 ### Fixes