Discussion on: Deploying a highly available Vault cluster on Amazon EKS using Terraform

[Chabane R.]

As the article has been written last year (at least 3.37.0), you should fix the terraform version with this one

terraform {
  required_providers {
    aws = {
      source  = "hashicorp/aws"
      version = "~> 3.0"
    }
  }
}