diff --git a/CHANGELOG.md b/CHANGELOG.md
index e6926a7fe..ce27261b4 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ BUG FIXES:
 * resource/ec_deployment: Fix bug where setting any of the `elasticsearch.config.user_settings_* = null` would result in a provider panic. ([#355](https://github.com/elastic/terraform-provider-ec/issues/355))
 * resource/ec_deployment: Fix bug where some of the settings that were set by the UI were unset by the Terraform provider. See #214 for more details on the bug report. ([#361](https://github.com/elastic/terraform-provider-ec/issues/361))
 * resource/ec_deployment: Fix bug where the deployment alias is ignored. ([#341](https://github.com/elastic/terraform-provider-ec/issues/341))
+* resource/ec_deployment: Fixed a bug that affects partial version upgrades. During an upgrade only a subset of resources would upgrade successfully, but the `version` argument value updated as if all resources were upgraded. Attempts to retry the upgrade would fail since the version difference was not detected. ([#371](https://github.com/elastic/terraform-provider-ec/issues/371))
 
 # 0.2.1 (Jun 17, 2021)