diff --git a/README.md b/README.md
index 681f4b6..a095259 100644
--- a/README.md
+++ b/README.md
@@ -86,7 +86,7 @@ module "lambda_api" {
 
 ## Requirements
 * Terraform version 0.13.2 or greater
-* AWS provider version 3.67 or greater
+* AWS provider version 5.26 or greater
 
 ## Inputs
 | Name                          | Type                                  | Description                                                                                                                                                                                                                                         | Default                                                                                |
diff --git a/changelog.md b/changelog.md
index f206bb3..b503d9a 100644
--- a/changelog.md
+++ b/changelog.md
@@ -1,5 +1,9 @@
 # Changelog
 
+## v4.0.0
+2/6/2023 - Enable support for nodejs20.x runtime
+- Require AWS provider >=5.26 to support nodejs20.x runtime
+
 ## v3.0.0
 2/6/2023 - Set `desync_mitigation_mode` to `strictest` in ALB
 - Require AWS provider >=3.67 to support `desync_mitigation_mode`
diff --git a/examples/docker-lambda/docker.tf b/examples/docker-lambda/docker.tf
index 928ed23..248b48e 100644
--- a/examples/docker-lambda/docker.tf
+++ b/examples/docker-lambda/docker.tf
@@ -1,5 +1,5 @@
 provider "aws" {
-  version = "~> 3.67"
+  version = "~> 5.26"
   region  = "us-west-2"
 }
 
diff --git a/examples/simple-lambda-in-vpc/example.tf b/examples/simple-lambda-in-vpc/example.tf
index d21fbaa..68c0490 100644
--- a/examples/simple-lambda-in-vpc/example.tf
+++ b/examples/simple-lambda-in-vpc/example.tf
@@ -1,5 +1,5 @@
 provider "aws" {
-  version = "~> 3.67"
+  version = "~> 5.26"
   region  = "us-west-2"
 }
 
diff --git a/main.tf b/main.tf
index 0c94e5b..a1c3ce6 100644
--- a/main.tf
+++ b/main.tf
@@ -1,7 +1,7 @@
 terraform {
   required_version = ">= 0.13.2"
   required_providers {
-    aws = ">= 3.67"
+    aws = ">= 5.26"
   }
 }