diff --git a/README.md b/README.md
index ca128a7..29791db 100644
--- a/README.md
+++ b/README.md
@@ -118,13 +118,13 @@ Examples codified under the [`examples`](https://github.com/terraform-aws-module
 | Name | Version |
 |------|---------|
 | <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.0 |
-| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.0 |
+| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.47 |
 
 ## Providers
 
 | Name | Version |
 |------|---------|
-| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 5.0 |
+| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 5.47 |
 
 ## Modules
 
@@ -185,7 +185,7 @@ No modules.
 | <a name="input_tags"></a> [tags](#input\_tags) | A map of tags to use on all resources | `map(string)` | `{}` | no |
 | <a name="input_tls_enabled"></a> [tls\_enabled](#input\_tls\_enabled) | A flag to enable in-transit encryption on the cluster. When set to `false`, the `acl_name` must be `open-access`. Defaults to `true` | `bool` | `null` | no |
 | <a name="input_use_name_prefix"></a> [use\_name\_prefix](#input\_use\_name\_prefix) | Determines whether `name` is used as a prefix for the cluster | `bool` | `false` | no |
-| <a name="input_users"></a> [users](#input\_users) | A map of user definitions (maps) to be created | `map(any)` | `{}` | no |
+| <a name="input_users"></a> [users](#input\_users) | A map of user definitions (maps) to be created | `any` | `{}` | no |
 
 ## Outputs
 
diff --git a/examples/complete/README.md b/examples/complete/README.md
index 0a7e475..31d07d1 100644
--- a/examples/complete/README.md
+++ b/examples/complete/README.md
@@ -26,14 +26,14 @@ Note that this example may create resources which will incur monetary charges on
 | Name | Version |
 |------|---------|
 | <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.0 |
-| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.0 |
+| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 5.47 |
 | <a name="requirement_random"></a> [random](#requirement\_random) | >= 3.0 |
 
 ## Providers
 
 | Name | Version |
 |------|---------|
-| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 5.0 |
+| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 5.47 |
 | <a name="provider_random"></a> [random](#provider\_random) | >= 3.0 |
 
 ## Modules
@@ -43,7 +43,7 @@ Note that this example may create resources which will incur monetary charges on
 | <a name="module_memory_db"></a> [memory\_db](#module\_memory\_db) | ../.. | n/a |
 | <a name="module_memory_db_disabled"></a> [memory\_db\_disabled](#module\_memory\_db\_disabled) | ../.. | n/a |
 | <a name="module_security_group"></a> [security\_group](#module\_security\_group) | terraform-aws-modules/security-group/aws | ~> 4.0 |
-| <a name="module_vpc"></a> [vpc](#module\_vpc) | terraform-aws-modules/vpc/aws | ~> 4.0 |
+| <a name="module_vpc"></a> [vpc](#module\_vpc) | terraform-aws-modules/vpc/aws | ~> 5.0 |
 
 ## Resources
 
diff --git a/examples/complete/main.tf b/examples/complete/main.tf
index 987ef5f..f5250aa 100644
--- a/examples/complete/main.tf
+++ b/examples/complete/main.tf
@@ -30,7 +30,7 @@ module "memory_db" {
   name        = local.name
   description = "Example MemoryDB cluster"
 
-  engine_version             = "6.2"
+  engine_version             = "7.0"
   auto_minor_version_upgrade = true
   node_type                  = "db.r6gd.xlarge"
   num_shards                 = 2
@@ -49,13 +49,13 @@ module "memory_db" {
     admin = {
       user_name     = "admin-user"
       access_string = "on ~* &* +@all"
-      passwords     = [random_password.password["admin"].result]
+      type          = "iam"
       tags          = { user = "admin" }
     }
     readonly = {
       user_name     = "readonly-user"
       access_string = "on ~* &* -@all +@read"
-      passwords     = [random_password.password["readonly"].result]
+      passwords     = [random_password.password.result]
       tags          = { user = "readonly" }
     }
   }
@@ -67,7 +67,7 @@ module "memory_db" {
   # Parameter group
   parameter_group_name        = "${local.name}-param-group"
   parameter_group_description = "Example MemoryDB parameter group"
-  parameter_group_family      = "memorydb_redis6"
+  parameter_group_family      = "memorydb_redis7"
   parameter_group_parameters = [
     {
       name  = "activedefrag"
@@ -95,7 +95,7 @@ module "memory_db" {
 
 module "vpc" {
   source  = "terraform-aws-modules/vpc/aws"
-  version = "~> 4.0"
+  version = "~> 5.0"
 
   name = local.name
   cidr = "10.99.0.0/18"
@@ -139,8 +139,6 @@ resource "aws_sns_topic" "example" {
 }
 
 resource "random_password" "password" {
-  for_each = toset(["admin", "readonly"])
-
   length           = 16
   special          = true
   override_special = "_%@"
diff --git a/examples/complete/versions.tf b/examples/complete/versions.tf
index 5d81057..5e9aae4 100644
--- a/examples/complete/versions.tf
+++ b/examples/complete/versions.tf
@@ -4,7 +4,7 @@ terraform {
   required_providers {
     aws = {
       source  = "hashicorp/aws"
-      version = ">= 5.0"
+      version = ">= 5.47"
     }
     random = {
       source  = "hashicorp/random"
diff --git a/main.tf b/main.tf
index ea9dcea..e0f935e 100644
--- a/main.tf
+++ b/main.tf
@@ -58,8 +58,8 @@ resource "aws_memorydb_user" "this" {
   access_string = each.value.access_string
 
   authentication_mode {
-    type      = "password"
-    passwords = each.value.passwords
+    type      = try(each.value.type, "password")
+    passwords = try(each.value.passwords, null)
   }
 
   tags = merge(var.tags, lookup(each.value, "tags", {}))
diff --git a/variables.tf b/variables.tf
index 6f59ad2..aec277f 100644
--- a/variables.tf
+++ b/variables.tf
@@ -146,7 +146,7 @@ variable "create_users" {
 
 variable "users" {
   description = "A map of user definitions (maps) to be created"
-  type        = map(any)
+  type        = any
   default     = {}
 }
 
diff --git a/versions.tf b/versions.tf
index ddfcb0e..407a955 100644
--- a/versions.tf
+++ b/versions.tf
@@ -4,7 +4,7 @@ terraform {
   required_providers {
     aws = {
       source  = "hashicorp/aws"
-      version = ">= 5.0"
+      version = ">= 5.47"
     }
   }
 }