diff --git a/README.md b/README.md
index 815aa0c..7b3f2af 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>  "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": "TBD",<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/code/ddns-lambda.py b/code/ddns-lambda.py
index a70cc45..491cc82 100755
--- a/code/ddns-lambda.py
+++ b/code/ddns-lambda.py
@@ -39,19 +39,19 @@
 LOGGER = logging.getLogger()
 ACCOUNT = None
 REGION = None
-VERSION = '0.0.3'
+VERSION = '0.0.4'
 
 # Adjust the logging level [logging.INFO, logging.DEBUG, logging.WARNING, etc]
 LOGGER.setLevel(logging.DEBUG)
 # SNS_CLIENT = None
 
 # Read Env variables 
-SLEEPTIME = int(os.environ['SleepTime'])
-DDBNAME = os.environ['DynamoDBName']
-TAGKEY_CNAME = os.environ['TagKeyCname']
-TAGKEY_ZONE = os.environ['TagKeyZone']
-TAGKEY_HOSTNAME = os.environ['TagKeyHostName']
-DNS_RR_TTL = int(os.environ['DNS_RR_TimeToLive'])
+SLEEPTIME = int(os.environ.get('SleepTime'],'60'))
+DDBNAME = os.environ.get('DynamoDBName','inf-dynamic-route53')
+TAGKEY_CNAME = os.environ.get('TagKeyCname','boc:dns:cname')
+TAGKEY_ZONE = os.environ.get('TagKeyZone','boc:dns:zone')
+TAGKEY_HOSTNAME = os.environ.get('TagKeyHostName','')
+DNS_RR_TTL = int(os.environ.get('DNS_RR_TimeToLive','60'))
 DNS_RR_TTL = 60 if DNS_RR_TTL==0 else DNS_RR_TTL
 
 print('Loading function v%s: %s'.format(VERSION,datetime.datetime.now().time().isoformat()))
diff --git a/code/ddns-lambda.zip b/code/ddns-lambda.zip
index 09d2410..107e128 100644
Binary files a/code/ddns-lambda.zip and b/code/ddns-lambda.zip differ
diff --git a/variables.tf b/variables.tf
index ee06181..fe23c08 100644
--- a/variables.tf
+++ b/variables.tf
@@ -20,10 +20,11 @@ variable "lambda_environment_variables" {
   description = "Map of lambda environment variables and values"
   type        = map(string)
   default = {
-    SleepTime      = 60
-    DynamoDBName   = null
-    TagKeyCname    = "boc:dns:cname"
-    TagKeyZone     = "boc:dns:zone"
-    TagKeyHostName = "TBD"
+    SleepTime         = 60
+    DynamoDBName      = null
+    TagKeyCname       = "boc:dns:cname"
+    TagKeyZone        = "boc:dns:zone"
+    TagKeyHostName    = "TBD"
+    DNS_RR_TimeToLive = 60
   }
 }
diff --git a/version.tf b/version.tf
index 8eb9976..382b328 100644
--- a/version.tf
+++ b/version.tf
@@ -1,3 +1,3 @@
 locals {
-  _module_version = "0.0.14"
+  _module_version = "0.0.15"
 }