diff --git a/README.md b/README.md
index 7efa905f..9f706b18 100644
--- a/README.md
+++ b/README.md
@@ -336,6 +336,14 @@ Type: `bool`
 
 Default: `false`
 
+### <a name="input_network_watcher_resource_group_tags"></a> [network\_watcher\_resource\_group\_tags](#input\_network\_watcher\_resource\_group\_tags)
+
+Description: n/a
+
+Type: `map(string)`
+
+Default: `{}`
+
 ### <a name="input_resource_group_creation_enabled"></a> [resource\_group\_creation\_enabled](#input\_resource\_group\_creation\_enabled)
 
 Description: Whether to create additional resource groups in the target subscription. Requires `var.resource_groups`.
@@ -619,7 +627,6 @@ Default:
   "Microsoft.Sql": [],
   "Microsoft.Storage": [],
   "Microsoft.StreamAnalytics": [],
-  "Microsoft.TimeSeriesInsights": [],
   "Microsoft.Web": [],
   "microsoft.insights": []
 }
@@ -1108,4 +1115,4 @@ Authorized use of Microsoft trademarks or logos is subject to and must follow
 [Microsoft's Trademark & Brand Guidelines](https://www.microsoft.com/legal/intellectualproperty/trademarks/usage/general).
 Use of Microsoft trademarks or logos in modified versions of this project must not cause confusion or imply Microsoft sponsorship.
 Any use of third-party trademarks or logos are subject to those third-party's policies.
-<!-- END_TF_DOCS -->
\ No newline at end of file
+<!-- END_TF_DOCS -->
diff --git a/main.resourcegroup.tf b/main.resourcegroup.tf
index f2bcc7be..6dc3de6a 100644
--- a/main.resourcegroup.tf
+++ b/main.resourcegroup.tf
@@ -15,7 +15,7 @@ module "resourcegroup_networkwatcherrg" {
   subscription_id     = local.subscription_id
   location            = var.location
   resource_group_name = "NetworkWatcherRG"
-  tags                = {}
+  tags                = var.network_watcher_resource_group_tags
 }
 
 
diff --git a/variables.resourcegroup.tf b/variables.resourcegroup.tf
index 685db2ec..55d59a98 100644
--- a/variables.resourcegroup.tf
+++ b/variables.resourcegroup.tf
@@ -12,6 +12,12 @@ DESCRIPTION
   default     = false
 }
 
+variable "network_watcher_resource_group_tags" {
+  type        = map(string)
+  description = "Tags for `NetworkWatcherRG` in the subscription."
+  default = {}
+}
+
 variable "resource_group_creation_enabled" {
   type        = bool
   description = "Whether to create additional resource groups in the target subscription. Requires `var.resource_groups`."