diff --git a/CHANGELOG.md b/CHANGELOG.md
index 781a098b4baf..785148794abe 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -30,6 +30,7 @@ BUG FIXES:
 * resource/aws_autoscalingplans_scaling_plan: Fix updates to `scaling_instruction` argument ([#17987](https://github.com/hashicorp/terraform-provider-aws/issues/17987))
 * resource/aws_elasticache_replication_group: Properly updates tags on Replication Group member clusters when scaling up ([#21185](https://github.com/hashicorp/terraform-provider-aws/issues/21185))
 * resource/aws_elasticache_replication_group: Properly updates tags on the Replication Group in addition to the member clusters ([#21185](https://github.com/hashicorp/terraform-provider-aws/issues/21185))
+* resource/aws_lb_target_group: Handle attributes at creation: `deregistration_delay`, `load_balancing_algorithm_type`, `preserve_client_ip`, `proxy_protocol_v2`, `slow_start`, `stickiness`, and `lambda_multi_value_headers_enabled` ([#21187](https://github.com/hashicorp/terraform-provider-aws/issues/21187))
 * resource/aws_route: Use custom `timeouts` values ([#21161](https://github.com/hashicorp/terraform-provider-aws/issues/21161))
 * resource/aws_ses_configuration_set: Fix ARN ([#21188](https://github.com/hashicorp/terraform-provider-aws/issues/21188))