[Terraform]ElastiCacheバージョンアップでリソースが再作成される問題

-/+ resource "aws_elasticache_replication_group" "this" {
      + apply_immediately              = (known after apply)
      ~ arn                            = "arn:aws:elasticache:ap-northeast-1:1234567890:replicationgroup:test-api-redis" -> (known after apply)
      ~ at_rest_encryption_enabled     = false -> (known after apply)
      ~ auto_minor_version_upgrade     = "true" -> (known after apply)
      ~ cluster_enabled                = false -> (known after apply)
      + configuration_endpoint_address = (known after apply)
      ~ data_tiering_enabled           = false -> (known after apply)
      ~ engine_version                 = "2.8.6" -> "6.x" # forces replacement