diff --git a/CHANGELOG.md b/CHANGELOG.md
index b7aa666..2650956 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -13,3 +13,7 @@
 * 0.0.18 -- 2022-02-07
   - update code: 0.0.8
   - add tf_module_version variable
+
+* 0.0.19 -- 2022-02-07
+  - update code: 0.0.10
+  - add default for tag key hostname of boc:dns:name
diff --git a/README.md b/README.md
index 7b3f2af..8c069fc 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ No modules.
 | <a name="input_component_tags"></a> [component\_tags](#input\_component\_tags) | Additional tags for Components (s3, kms, ddb) | `map(map(string))` | <pre>{<br>  "ddb": {},<br>  "kms": {},<br>  "s3": {}<br>}</pre> | no |
 | <a name="input_create"></a> [create](#input\_create) | Flag to indicate whether to create the resources or not (default: true) | `bool` | `true` | no |
 | <a name="input_dynamodb_table_name"></a> [dynamodb\_table\_name](#input\_dynamodb\_table\_name) | Different DynamoDB table name to override default of var.name) | `string` | `null` | no |
-| <a name="input_lambda_environment_variables"></a> [lambda\_environment\_variables](#input\_lambda\_environment\_variables) | Map of lambda environment variables and values | `map(string)` | <pre>{<br>  "DNS_RR_TimeToLive": 60,<br>  "DynamoDBName": null,<br>  "SleepTime": 60,<br>  "TagKeyCname": "boc:dns:cname",<br>  "TagKeyHostName": "TBD",<br>  "TagKeyZone": "boc:dns:zone"<br>}</pre> | no |
+| <a name="input_lambda_environment_variables"></a> [lambda\_environment\_variables](#input\_lambda\_environment\_variables) | Map of lambda environment variables and values | `map(string)` | <pre>{<br>  "DNS_RR_TimeToLive": 60,<br>  "DynamoDBName": null,<br>  "SleepTime": 60,<br>  "TagKeyCname": "boc:dns:cname",<br>  "TagKeyHostName": "boc:dns:name",<br>  "TagKeyZone": "boc:dns:zone"<br>}</pre> | no |
 | <a name="input_lambda_name"></a> [lambda\_name](#input\_lambda\_name) | Different Lambda name to override default of var.name) | `string` | `null` | no |
 | <a name="input_name"></a> [name](#input\_name) | Name to use within all the created resources (default: inf-dynamic-route53) | `string` | `"inf-dynamic-route53"` | no |
 | <a name="input_override_prefixes"></a> [override\_prefixes](#input\_override\_prefixes) | Override built-in prefixes by component. This should be used primarily for common infrastructure things | `map(string)` | `{}` | no |
diff --git a/variables.tf b/variables.tf
index fe23c08..afb4945 100644
--- a/variables.tf
+++ b/variables.tf
@@ -24,7 +24,7 @@ variable "lambda_environment_variables" {
     DynamoDBName      = null
     TagKeyCname       = "boc:dns:cname"
     TagKeyZone        = "boc:dns:zone"
-    TagKeyHostName    = "TBD"
+    TagKeyHostName    = "boc:dns:name"
     DNS_RR_TimeToLive = 60
   }
 }
diff --git a/version.tf b/version.tf
index 28a48b4..bdf1368 100644
--- a/version.tf
+++ b/version.tf
@@ -1,3 +1,3 @@
 locals {
-  _module_version = "0.0.18"
+  _module_version = "0.0.19"
 }