diff --git a/.bumpversion.cfg b/.bumpversion.cfg
index 63b3026..b49e513 100644
--- a/.bumpversion.cfg
+++ b/.bumpversion.cfg
@@ -1,5 +1,5 @@
 [bumpversion]
-current_version = 1.0.2
+current_version = 2.0.0
 commit = True
 message = Bumps version to {new_version}
 tag = False
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 01d87d5..e9c687c 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,9 +1,24 @@
-## terraform-aws-tardigrade-transit-gateway-attachment Change Log
+## terraform-aws-tardigrade-transit-gateway Change Log
 
 All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](http://keepachangelog.com/) and this project adheres to [Semantic Versioning](http://semver.org/).
 
+### 2.0.0
+
+**Commit Delta**: [Change from 1.0.2 release](https://github.com/plus3it/terraform-aws-tardigrade-transit-gateway/compare/1.0.2..2.0.0)
+
+**Released**: 2021.12.29
+
+**Summary**:
+
+*   Removes variables in cross-account-vpc-attachment module that were used to
+    create a dependency so the attachment would succeed. These variables are no
+    longer needed, presumably due to new retry functionality in the AWS provider.
+*   Uses `configuration_aliases` instead of empty provider blocks.
+*   Bumps minimum terraform version to 0.15 for the cross-account and cross-region
+    modules.
+
 ### 0.0.0
 
 **Commit Delta**: N/A
diff --git a/modules/cross-account-vpc-attachment/README.md b/modules/cross-account-vpc-attachment/README.md
index f384e0e..aaab3b5 100644
--- a/modules/cross-account-vpc-attachment/README.md
+++ b/modules/cross-account-vpc-attachment/README.md
@@ -7,7 +7,7 @@ Terraform module for managing a cross-account Transit Gateway VPC Attachment.
 
 | Name | Version |
 |------|---------|
-| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 0.13 |
+| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 0.15 |
 | <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 3.0 |
 
 ## Providers
@@ -26,8 +26,6 @@ Terraform module for managing a cross-account Transit Gateway VPC Attachment.
 
 | Name | Description | Type | Default | Required |
 |------|-------------|------|---------|:--------:|
-| <a name="input_ram_resource_association_id"></a> [ram\_resource\_association\_id](#input\_ram\_resource\_association\_id) | ID of the RAM resource association for the Transit Gateway | `string` | n/a | yes |
-| <a name="input_ram_share_id"></a> [ram\_share\_id](#input\_ram\_share\_id) | ID of the RAM Share associated with the Transit Gateway | `string` | n/a | yes |
 | <a name="input_subnet_ids"></a> [subnet\_ids](#input\_subnet\_ids) | List of subnets to associate with the VPC attachment | `list(string)` | n/a | yes |
 | <a name="input_transit_gateway_id"></a> [transit\_gateway\_id](#input\_transit\_gateway\_id) | ID of the Transit Gateway | `string` | n/a | yes |
 | <a name="input_dns_support"></a> [dns\_support](#input\_dns\_support) | Whether DNS support is enabled. Valid values: disable, enable. | `string` | `"enable"` | no |
diff --git a/modules/cross-account-vpc-attachment/main.tf b/modules/cross-account-vpc-attachment/main.tf
index 76209c2..8fd43fd 100644
--- a/modules/cross-account-vpc-attachment/main.tf
+++ b/modules/cross-account-vpc-attachment/main.tf
@@ -1,7 +1,3 @@
-provider "aws" {
-  alias = "owner"
-}
-
 module "vpc_attachment" {
   source = "../vpc-attachment"
 
@@ -10,15 +6,8 @@ module "vpc_attachment" {
   cross_account      = true
   dns_support        = var.dns_support
   ipv6_support       = var.ipv6_support
+  tags               = var.tags
   vpc_routes         = [for route in var.vpc_routes : route if route.provider == "aws"]
-
-  tags = merge(
-    {
-      ram_share_id                = var.ram_share_id
-      ram_resource_association_id = var.ram_resource_association_id
-    },
-    var.tags,
-  )
 }
 
 module "vpc_accepter" {
diff --git a/modules/cross-account-vpc-attachment/variables.tf b/modules/cross-account-vpc-attachment/variables.tf
index a320af8..495670a 100644
--- a/modules/cross-account-vpc-attachment/variables.tf
+++ b/modules/cross-account-vpc-attachment/variables.tf
@@ -1,13 +1,3 @@
-variable "ram_share_id" {
-  description = "ID of the RAM Share associated with the Transit Gateway"
-  type        = string
-}
-
-variable "ram_resource_association_id" {
-  description = "ID of the RAM resource association for the Transit Gateway"
-  type        = string
-}
-
 variable "subnet_ids" {
   description = "List of subnets to associate with the VPC attachment"
   type        = list(string)
diff --git a/modules/cross-account-vpc-attachment/versions.tf b/modules/cross-account-vpc-attachment/versions.tf
index 34260e6..9e4b3e9 100644
--- a/modules/cross-account-vpc-attachment/versions.tf
+++ b/modules/cross-account-vpc-attachment/versions.tf
@@ -1,10 +1,14 @@
 terraform {
-  required_version = ">= 0.13"
+  required_version = ">= 0.15"
 
   required_providers {
     aws = {
       source  = "hashicorp/aws"
       version = ">= 3.0"
+
+      configuration_aliases = [
+        aws.owner
+      ]
     }
   }
 }
diff --git a/modules/cross-region-peering-attachment/README.md b/modules/cross-region-peering-attachment/README.md
index 8d3a3fa..8dc45a1 100644
--- a/modules/cross-region-peering-attachment/README.md
+++ b/modules/cross-region-peering-attachment/README.md
@@ -8,7 +8,7 @@ may be the same or different accounts, but must be different regions.
 
 | Name | Version |
 |------|---------|
-| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 0.13 |
+| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 0.15 |
 | <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 3.0 |
 
 ## Providers
diff --git a/modules/cross-region-peering-attachment/main.tf b/modules/cross-region-peering-attachment/main.tf
index dc3e715..c27db87 100644
--- a/modules/cross-region-peering-attachment/main.tf
+++ b/modules/cross-region-peering-attachment/main.tf
@@ -1,7 +1,3 @@
-provider "aws" {
-  alias = "peer"
-}
-
 module "peering_attachment" {
   source = "../peering-attachment"
 
diff --git a/modules/cross-region-peering-attachment/versions.tf b/modules/cross-region-peering-attachment/versions.tf
index 34260e6..98c5fc6 100644
--- a/modules/cross-region-peering-attachment/versions.tf
+++ b/modules/cross-region-peering-attachment/versions.tf
@@ -1,10 +1,14 @@
 terraform {
-  required_version = ">= 0.13"
+  required_version = ">= 0.15"
 
   required_providers {
     aws = {
       source  = "hashicorp/aws"
       version = ">= 3.0"
+
+      configuration_aliases = [
+        aws.peer
+      ]
     }
   }
 }
diff --git a/tests/cross-account-vpc-attachment/main.tf b/tests/cross-account-vpc-attachment/main.tf
index 5beea52..85f4ae8 100644
--- a/tests/cross-account-vpc-attachment/main.tf
+++ b/tests/cross-account-vpc-attachment/main.tf
@@ -1,12 +1,24 @@
 provider "aws" {
   region  = "us-east-1"
-  profile = "resource-member"
+  profile = "aws"
+
+  default_tags {
+    tags = {
+      TARDIGRADE_TEST = true
+    }
+  }
 }
 
 provider "aws" {
   region  = "us-east-1"
   alias   = "owner"
-  profile = "resource-owner"
+  profile = "awsalternate"
+
+  default_tags {
+    tags = {
+      TARDIGRADE_TEST = true
+    }
+  }
 }
 
 module "vpc_attachment" {
@@ -17,9 +29,6 @@ module "vpc_attachment" {
     aws.owner = aws.owner
   }
 
-  ram_share_id                = module.ram_share_accepter.share_accepter.share_id
-  ram_resource_association_id = module.ram_share.resource_associations["tardigrade-tgw"].resource_association.id
-
   subnet_ids         = module.vpc_member.private_subnets
   transit_gateway_id = module.tgw.transit_gateway.id
   routes             = local.routes
diff --git a/tests/cross-region-peering-attachment/main.tf b/tests/cross-region-peering-attachment/main.tf
index 3dcca0d..8e3c7cb 100644
--- a/tests/cross-region-peering-attachment/main.tf
+++ b/tests/cross-region-peering-attachment/main.tf
@@ -1,12 +1,12 @@
 provider "aws" {
   region  = "us-east-1"
-  profile = "resource-member"
+  profile = "aws"
 }
 
 provider "aws" {
   region  = "us-east-2"
   alias   = "peer"
-  profile = "resource-owner"
+  profile = "awsalternate"
 }
 
 module "peering_attachment" {
diff --git a/tests/tgw/main.tf b/tests/tgw/main.tf
index e662189..3839375 100644
--- a/tests/tgw/main.tf
+++ b/tests/tgw/main.tf
@@ -1,5 +1,6 @@
 provider "aws" {
-  region = "us-east-1"
+  region  = "us-east-1"
+  profile = "aws"
 }
 
 module "tgw" {