diff --git a/README.md b/README.md
index 33b8f82..fe91f13 100644
--- a/README.md
+++ b/README.md
@@ -258,6 +258,7 @@ Available targets:
 | <a name="input_at_rest_encryption_enabled"></a> [at\_rest\_encryption\_enabled](#input\_at\_rest\_encryption\_enabled) | Enable encryption at rest | `bool` | `false` | no |
 | <a name="input_attributes"></a> [attributes](#input\_attributes) | ID element. Additional attributes (e.g. `workers` or `cluster`) to add to `id`,<br>in the order they appear in the list. New attributes are appended to the<br>end of the list. The elements of the list are joined by the `delimiter`<br>and treated as a single ID element. | `list(string)` | `[]` | no |
 | <a name="input_auth_token"></a> [auth\_token](#input\_auth\_token) | Auth token for password protecting redis, `transit_encryption_enabled` must be set to `true`. Password must be longer than 16 chars | `string` | `null` | no |
+| <a name="input_auto_minor_version_upgrade"></a> [auto\_minor\_version\_upgrade](#input\_auto\_minor\_version\_upgrade) | Specifies whether minor version engine upgrades will be applied automatically to the underlying Cache Cluster instances during the maintenance window. Only supported if the engine version is 6 or higher. | `bool` | `null` | no |
 | <a name="input_automatic_failover_enabled"></a> [automatic\_failover\_enabled](#input\_automatic\_failover\_enabled) | Automatic failover (Not available for T1/T2 instances) | `bool` | `false` | no |
 | <a name="input_availability_zones"></a> [availability\_zones](#input\_availability\_zones) | Availability zone IDs | `list(string)` | `[]` | no |
 | <a name="input_cloudwatch_metric_alarms_enabled"></a> [cloudwatch\_metric\_alarms\_enabled](#input\_cloudwatch\_metric\_alarms\_enabled) | Boolean flag to enable/disable CloudWatch metrics alarms | `bool` | `false` | no |
diff --git a/docs/terraform.md b/docs/terraform.md
index dea7fd8..8f489ca 100644
--- a/docs/terraform.md
+++ b/docs/terraform.md
@@ -48,6 +48,7 @@
 | <a name="input_at_rest_encryption_enabled"></a> [at\_rest\_encryption\_enabled](#input\_at\_rest\_encryption\_enabled) | Enable encryption at rest | `bool` | `false` | no |
 | <a name="input_attributes"></a> [attributes](#input\_attributes) | ID element. Additional attributes (e.g. `workers` or `cluster`) to add to `id`,<br>in the order they appear in the list. New attributes are appended to the<br>end of the list. The elements of the list are joined by the `delimiter`<br>and treated as a single ID element. | `list(string)` | `[]` | no |
 | <a name="input_auth_token"></a> [auth\_token](#input\_auth\_token) | Auth token for password protecting redis, `transit_encryption_enabled` must be set to `true`. Password must be longer than 16 chars | `string` | `null` | no |
+| <a name="input_auto_minor_version_upgrade"></a> [auto\_minor\_version\_upgrade](#input\_auto\_minor\_version\_upgrade) | Specifies whether minor version engine upgrades will be applied automatically to the underlying Cache Cluster instances during the maintenance window. Only supported if the engine version is 6 or higher. | `bool` | `null` | no |
 | <a name="input_automatic_failover_enabled"></a> [automatic\_failover\_enabled](#input\_automatic\_failover\_enabled) | Automatic failover (Not available for T1/T2 instances) | `bool` | `false` | no |
 | <a name="input_availability_zones"></a> [availability\_zones](#input\_availability\_zones) | Availability zone IDs | `list(string)` | `[]` | no |
 | <a name="input_cloudwatch_metric_alarms_enabled"></a> [cloudwatch\_metric\_alarms\_enabled](#input\_cloudwatch\_metric\_alarms\_enabled) | Boolean flag to enable/disable CloudWatch metrics alarms | `bool` | `false` | no |
diff --git a/main.tf b/main.tf
index bff55db..fe8dd88 100644
--- a/main.tf
+++ b/main.tf
@@ -142,6 +142,7 @@ resource "aws_elasticache_replication_group" "default" {
   snapshot_retention_limit   = var.snapshot_retention_limit
   final_snapshot_identifier  = var.final_snapshot_identifier
   apply_immediately          = var.apply_immediately
+  auto_minor_version_upgrade = var.auto_minor_version_upgrade
 
   dynamic "log_delivery_configuration" {
     for_each = var.log_delivery_configuration
diff --git a/variables.tf b/variables.tf
index 73205a9..4d7480c 100644
--- a/variables.tf
+++ b/variables.tf
@@ -242,3 +242,9 @@ variable "user_group_ids" {
   default     = []
   description = "User Group ID to associate with the replication group"
 }
+
+variable "auto_minor_version_upgrade" {
+  type        = bool
+  default     = null
+  description = "Specifies whether minor version engine upgrades will be applied automatically to the underlying Cache Cluster instances during the maintenance window. Only supported if the engine version is 6 or higher."
+}