diff --git a/README.md b/README.md
index f759016..de1c588 100644
--- a/README.md
+++ b/README.md
@@ -42,6 +42,7 @@ module "bootstrap" {
 | Name | Description | Type | Default | Required |
 |------|-------------|------|---------|:--------:|
 | account\_alias | The desired AWS account alias. | `string` | n/a | yes |
+| log\_retention | Log retention of access logs of state bucket. | `number` | `90` | no |
 | region | AWS region. | `string` | n/a | yes |
 
 ## Outputs
diff --git a/main.tf b/main.tf
index 5a9e2be..3b33d91 100644
--- a/main.tf
+++ b/main.tf
@@ -33,9 +33,10 @@ module "terraform_state_bucket_logs" {
   source  = "trussworks/logs/aws"
   version = "~> 8.0.1"
 
-  region         = var.region
-  s3_bucket_name = local.logging_bucket
-  default_allow  = false
+  region                  = var.region
+  s3_bucket_name          = local.logging_bucket
+  default_allow           = false
+  s3_log_bucket_retention = var.log_retention
 }
 
 #
diff --git a/variables.tf b/variables.tf
index c3b3ae2..668c67a 100644
--- a/variables.tf
+++ b/variables.tf
@@ -7,3 +7,9 @@ variable "account_alias" {
   description = "The desired AWS account alias."
   type        = string
 }
+
+variable "log_retention" {
+  description = "Log retention of access logs of state bucket."
+  default     = 90
+  type        = number
+}