diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 0a26a19..ca22696 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -18,7 +18,7 @@ repos:
     args: ['--allow-missing-credentials']
   - id: trailing-whitespace
 - repo: git://github.com/antonbabenko/pre-commit-terraform
-  rev: v1.29.0
+  rev: v1.30.0
   hooks:
   - id: terraform_fmt
   - id: terraform_docs
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 54f36f0..489378f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,16 +5,13 @@ All notable changes to this project will be documented in this file.
 <a name="unreleased"></a>
 ## [Unreleased]
 
+- address comments format and use of tags in example
+- add changes to support additional tags for cluster and cluster instance
+- update CHANGELOG
 - update config for chglog
 - Add changelog
 
 
-<a name="1.0.1"></a>
-## [1.0.1] - 2020-04-21
-
-- Add changelog
-
-
 <a name="1.0.0"></a>
 ## 1.0.0 - 2020-04-20
 
@@ -22,5 +19,4 @@ All notable changes to this project will be documented in this file.
 - Initial commit
 
 
-[Unreleased]: https://github.com/umotif-public/terraform-aws-rds-aurora/compare/1.0.1...HEAD
-[1.0.1]: https://github.com/umotif-public/terraform-aws-rds-aurora/compare/1.0.0...1.0.1
+[Unreleased]: https://github.com/umotif-public/terraform-aws-rds-aurora/compare/1.0.0...HEAD
diff --git a/README.md b/README.md
index 657a929..24f3b3f 100644
--- a/README.md
+++ b/README.md
@@ -99,6 +99,8 @@ Module managed by [Marcin Cuber](https://github.com/marcincuber) [LinkedIn](http
 | backtrack\_window | The target backtrack window, in seconds. Only available for aurora engine currently. To disable backtracking, set this value to 0. Defaults to 0. Must be between 0 and 259200 (72 hours) | `number` | `0` | no |
 | backup\_retention\_period | How long to keep backups for (in days) | `number` | `7` | no |
 | ca\_cert\_identifier | The identifier of the CA certificate for the DB instance. | `string` | `"rds-ca-2019"` | no |
+| cluster\_instance\_tags | Additional tags for the cluster instance | `map(string)` | `{}` | no |
+| cluster\_tags | Additional tags for the cluster | `map(string)` | `{}` | no |
 | copy\_tags\_to\_snapshot | Copy all Cluster tags to snapshots. | `bool` | `false` | no |
 | create\_monitoring\_role | Whether to create the IAM role for RDS enhanced monitoring | `bool` | `true` | no |
 | create\_security\_group | Whether to create security group for RDS cluster | `bool` | `true` | no |
diff --git a/examples/aurora-mysql/main.tf b/examples/aurora-mysql/main.tf
index 0eceb28..415ac10 100644
--- a/examples/aurora-mysql/main.tf
+++ b/examples/aurora-mysql/main.tf
@@ -166,6 +166,14 @@ module "aurora" {
 
   create_security_group = true
 
+  cluster_tags = {
+    "cluster_tags" = "example cluster main"
+  }
+
+  cluster_instance_tags = {
+    "cluster_instance_tags" = "example of cluster instance tags"
+  }
+
   tags = {
     Environment = "test"
   }
diff --git a/main.tf b/main.tf
index 7638e8a..4178b23 100644
--- a/main.tf
+++ b/main.tf
@@ -138,7 +138,10 @@ resource "aws_rds_cluster" "main" {
     }
   }
 
-  tags = var.tags
+  tags = merge(
+    var.tags,
+    var.cluster_tags
+  )
 
   lifecycle {
     ignore_changes = [master_username, master_password]
@@ -173,7 +176,10 @@ resource "aws_rds_cluster_instance" "main" {
   performance_insights_kms_key_id = var.performance_insights_kms_key_id
   ca_cert_identifier              = var.ca_cert_identifier
 
-  tags = var.tags
+  tags = merge(
+    var.tags,
+    var.cluster_instance_tags
+  )
 }
 
 #####
diff --git a/variables.tf b/variables.tf
index b2b4576..7fce839 100644
--- a/variables.tf
+++ b/variables.tf
@@ -349,3 +349,15 @@ variable "create_monitoring_role" {
   type        = bool
   default     = true
 }
+
+variable "cluster_tags" {
+  description = "Additional tags for the cluster"
+  type        = map(string)
+  default     = {}
+}
+
+variable "cluster_instance_tags" {
+  description = "Additional tags for the cluster instance"
+  type        = map(string)
+  default     = {}
+}