diff --git a/README.md b/README.md
index a8091bb..839c923 100644
--- a/README.md
+++ b/README.md
@@ -102,9 +102,8 @@ module "myrole3" {
 
 | Name | Version |
 |------|---------|
-| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 0.13 |
 | <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 3.66.0 |
-| <a name="requirement_external"></a> [external](#requirement\_external) | >= 2.2.0 |
+| <a name="requirement_external"></a> [external](#requirement\_external) | ~> 1.1 |
 | <a name="requirement_ldap"></a> [ldap](#requirement\_ldap) | >= 0.5.4 |
 
 ## Providers
@@ -112,7 +111,7 @@ module "myrole3" {
 | Name | Version |
 |------|---------|
 | <a name="provider_aws"></a> [aws](#provider\_aws) | >= 3.66.0 |
-| <a name="provider_external"></a> [external](#provider\_external) | >= 2.2.0 |
+| <a name="provider_external"></a> [external](#provider\_external) | ~> 1.1 |
 | <a name="provider_ldap"></a> [ldap](#provider\_ldap) | >= 0.5.4 |
 | <a name="provider_null"></a> [null](#provider\_null) | n/a |
 | <a name="provider_template"></a> [template](#provider\_template) | n/a |
diff --git a/versions.tf b/versions.tf
index f6feb00..512d138 100644
--- a/versions.tf
+++ b/versions.tf
@@ -1,4 +1,3 @@
-# tf 0.13+
 terraform {
   required_providers {
     aws = {
@@ -10,14 +9,12 @@ terraform {
       version = ">= 0.5.4"
     }
     external = {
-      source  = "hashicorp/external"
-      version = ">= 2.2.0"
+      source = "hashicorp/external"
+      # tf 0.13
+      #      version = ">= 2.2.0"
+      # tf 0.12
+      version = "~> 1.1"
     }
   }
-  required_version = ">= 0.13"
+  #  required_version = ">= 0.13"
 }
-
-# tf 0.12
-# provider "external" {
-#   version = "~> 1.2"
-# }