diff --git a/README.md b/README.md
index a3a3048..0e813f0 100644
--- a/README.md
+++ b/README.md
@@ -146,14 +146,14 @@ Examples codified under the [`examples`](https://github.com/terraform-aws-module
 
 | Name | Version |
 |------|---------|
-| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 0.13.1 |
-| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 3.72 |
+| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.0 |
+| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 4.33 |
 
 ## Providers
 
 | Name | Version |
 |------|---------|
-| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 3.72 |
+| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 4.33 |
 
 ## Modules
 
@@ -185,6 +185,7 @@ No modules.
 | <a name="input_create_external"></a> [create\_external](#input\_create\_external) | Determines whether an external CMK (externally provided material) will be created or a standard CMK (AWS provided material) | `bool` | `false` | no |
 | <a name="input_create_replica"></a> [create\_replica](#input\_create\_replica) | Determines whether a replica standard CMK will be created (AWS provided material) | `bool` | `false` | no |
 | <a name="input_create_replica_external"></a> [create\_replica\_external](#input\_create\_replica\_external) | Determines whether a replica external CMK will be created (externally provided material) | `bool` | `false` | no |
+| <a name="input_custom_key_store_id"></a> [custom\_key\_store\_id](#input\_custom\_key\_store\_id) | ID of the KMS Custom Key Store where the key will be stored instead of KMS (eg CloudHSM). | `string` | `null` | no |
 | <a name="input_customer_master_key_spec"></a> [customer\_master\_key\_spec](#input\_customer\_master\_key\_spec) | Specifies whether the key contains a symmetric key or an asymmetric key pair and the encryption algorithms or signing algorithms that the key supports. Valid values: `SYMMETRIC_DEFAULT`, `RSA_2048`, `RSA_3072`, `RSA_4096`, `HMAC_256`, `ECC_NIST_P256`, `ECC_NIST_P384`, `ECC_NIST_P521`, or `ECC_SECG_P256K1`. Defaults to `SYMMETRIC_DEFAULT` | `string` | `null` | no |
 | <a name="input_deletion_window_in_days"></a> [deletion\_window\_in\_days](#input\_deletion\_window\_in\_days) | The waiting period, specified in number of days. After the waiting period ends, AWS KMS deletes the KMS key. If you specify a value, it must be between `7` and `30`, inclusive. If you do not specify a value, it defaults to `30` | `number` | `null` | no |
 | <a name="input_description"></a> [description](#input\_description) | The description of the key as viewed in AWS console | `string` | `null` | no |
diff --git a/examples/complete/README.md b/examples/complete/README.md
index 8a4297f..48d306d 100644
--- a/examples/complete/README.md
+++ b/examples/complete/README.md
@@ -24,14 +24,14 @@ Note that this example may create resources which will incur monetary charges on
 
 | Name | Version |
 |------|---------|
-| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 0.13.1 |
-| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 3.72 |
+| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.0 |
+| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 4.33 |
 
 ## Providers
 
 | Name | Version |
 |------|---------|
-| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 3.72 |
+| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 4.33 |
 
 ## Modules
 
diff --git a/examples/complete/versions.tf b/examples/complete/versions.tf
index 22e8d72..14a7ee2 100644
--- a/examples/complete/versions.tf
+++ b/examples/complete/versions.tf
@@ -1,10 +1,10 @@
 terraform {
-  required_version = ">= 0.13.1"
+  required_version = ">= 1.0"
 
   required_providers {
     aws = {
       source  = "hashicorp/aws"
-      version = ">= 3.72"
+      version = ">= 4.33"
     }
   }
 }
diff --git a/main.tf b/main.tf
index b25763c..2b3ac10 100644
--- a/main.tf
+++ b/main.tf
@@ -10,6 +10,7 @@ resource "aws_kms_key" "this" {
 
   bypass_policy_lockout_safety_check = var.bypass_policy_lockout_safety_check
   customer_master_key_spec           = var.customer_master_key_spec
+  custom_key_store_id                = var.custom_key_store_id
   deletion_window_in_days            = var.deletion_window_in_days
   description                        = var.description
   enable_key_rotation                = var.enable_key_rotation
diff --git a/variables.tf b/variables.tf
index ab860a3..0eb9b90 100644
--- a/variables.tf
+++ b/variables.tf
@@ -32,6 +32,12 @@ variable "customer_master_key_spec" {
   default     = null
 }
 
+variable "custom_key_store_id" {
+  description = "ID of the KMS Custom Key Store where the key will be stored instead of KMS (eg CloudHSM)."
+  type        = string
+  default     = null
+}
+
 variable "deletion_window_in_days" {
   description = "The waiting period, specified in number of days. After the waiting period ends, AWS KMS deletes the KMS key. If you specify a value, it must be between `7` and `30`, inclusive. If you do not specify a value, it defaults to `30`"
   type        = number
diff --git a/versions.tf b/versions.tf
index 22e8d72..14a7ee2 100644
--- a/versions.tf
+++ b/versions.tf
@@ -1,10 +1,10 @@
 terraform {
-  required_version = ">= 0.13.1"
+  required_version = ">= 1.0"
 
   required_providers {
     aws = {
       source  = "hashicorp/aws"
-      version = ">= 3.72"
+      version = ">= 4.33"
     }
   }
 }