diff --git a/.github/copilot-instructions.md b/.github/copilot-instructions.md
index 897e256..26ad940 100644
--- a/.github/copilot-instructions.md
+++ b/.github/copilot-instructions.md
@@ -36,7 +36,7 @@ Copilot loads skills automatically when relevant to a task. Always-on rules stay
 
 ## Terraform Conventions
 
-- Required versions (per module README): Terraform `>= 1.9.5`; Providers: `aws ~> 5`, `awscc ~> 1`, `archive ~> 2`.
+- Required versions (per module README): Terraform `>= 1.14.6`; Providers: `aws ~> 5`, `awscc ~> 1`, `archive ~> 2`.
 - Preserve input variable schemas; don't rename existing variables unless part of an approved refactor.
 - Avoid expanding resource surface unless justified (e.g., adding new AWS service support). If adding service support: supply docs update + variable toggles + tests.
 - Run `terraform fmt` implicitly (do not show command unless asked). Keep modules deterministic.
diff --git a/.tool-versions b/.tool-versions
index 32db55a..3244474 100644
--- a/.tool-versions
+++ b/.tool-versions
@@ -1,6 +1,6 @@
 # This file is for you! Please, updated to the versions agreed by your team.
 
-terraform 1.7.0
+terraform 1.14.6
 pre-commit 3.6.0
 
 # ==============================================================================
diff --git a/examples/destination/.terraform.lock.hcl b/examples/destination/.terraform.lock.hcl
new file mode 100644
index 0000000..39a6fbd
--- /dev/null
+++ b/examples/destination/.terraform.lock.hcl
@@ -0,0 +1,25 @@
+# This file is maintained automatically by "terraform init".
+# Manual edits may be lost in future updates.
+
+provider "registry.terraform.io/hashicorp/aws" {
+  version     = "5.100.0"
+  constraints = "~> 5.0"
+  hashes = [
+    "h1:edXOJWE4ORX8Fm+dpVpICzMZJat4AX0VRCAy/xkcOc0=",
+    "zh:054b8dd49f0549c9a7cc27d159e45327b7b65cf404da5e5a20da154b90b8a644",
+    "zh:0b97bf8d5e03d15d83cc40b0530a1f84b459354939ba6f135a0086c20ebbe6b2",
+    "zh:1589a2266af699cbd5d80737a0fe02e54ec9cf2ca54e7e00ac51c7359056f274",
+    "zh:6330766f1d85f01ae6ea90d1b214b8b74cc8c1badc4696b165b36ddd4cc15f7b",
+    "zh:7c8c2e30d8e55291b86fcb64bdf6c25489d538688545eb48fd74ad622e5d3862",
+    "zh:99b1003bd9bd32ee323544da897148f46a527f622dc3971af63ea3e251596342",
+    "zh:9b12af85486a96aedd8d7984b0ff811a4b42e3d88dad1a3fb4c0b580d04fa425",
+    "zh:9f8b909d3ec50ade83c8062290378b1ec553edef6a447c56dadc01a99f4eaa93",
+    "zh:aaef921ff9aabaf8b1869a86d692ebd24fbd4e12c21205034bb679b9caf883a2",
+    "zh:ac882313207aba00dd5a76dbd572a0ddc818bb9cbf5c9d61b28fe30efaec951e",
+    "zh:bb64e8aff37becab373a1a0cc1080990785304141af42ed6aa3dd4913b000421",
+    "zh:dfe495f6621df5540d9c92ad40b8067376350b005c637ea6efac5dc15028add4",
+    "zh:f0ddf0eaf052766cfe09dea8200a946519f653c384ab4336e2a4a64fdd6310e9",
+    "zh:f1b7e684f4c7ae1eed272b6de7d2049bb87a0275cb04dbb7cda6636f600699c9",
+    "zh:ff461571e3f233699bf690db319dfe46aec75e58726636a0d97dd9ac6e32fb70",
+  ]
+}
diff --git a/modules/aws-backup-destination/README.md b/modules/aws-backup-destination/README.md
index 3ce01f0..9c72b41 100644
--- a/modules/aws-backup-destination/README.md
+++ b/modules/aws-backup-destination/README.md
@@ -2,6 +2,13 @@
 
 The AWS Backup Module helps automates the setup of AWS Backup resources in a destination account. It streamlines the process of creating, managing, and standardising backup configurations.
 
+## Requirements
+
+| Name | Version |
+|------|---------|
+| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.14.6 |
+| <a name="requirement_aws"></a> [aws](#requirement\_aws) | ~> 5 |
+
 ## Inputs
 
 | Name | Description | Type | Default | Required |
diff --git a/modules/aws-backup-destination/versions.tf b/modules/aws-backup-destination/versions.tf
new file mode 100644
index 0000000..fcc2c02
--- /dev/null
+++ b/modules/aws-backup-destination/versions.tf
@@ -0,0 +1,10 @@
+terraform {
+  required_providers {
+    aws = {
+      source  = "hashicorp/aws"
+      version = "~> 5"
+    }
+  }
+
+  required_version = ">= 1.14.6"
+}
diff --git a/modules/aws-backup-source/README.md b/modules/aws-backup-source/README.md
index 2bcc0ec..d669399 100644
--- a/modules/aws-backup-source/README.md
+++ b/modules/aws-backup-source/README.md
@@ -21,7 +21,7 @@ module "test_aws_backup" {
 
 | Name | Version |
 |------|---------|
-| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.9.5 |
+| <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 1.14.6 |
 | <a name="requirement_archive"></a> [archive](#requirement\_archive) | ~> 2 |
 | <a name="requirement_aws"></a> [aws](#requirement\_aws) | ~> 5 |
 | <a name="requirement_awscc"></a> [awscc](#requirement\_awscc) | ~> 1 |
diff --git a/modules/aws-backup-source/versions.tf b/modules/aws-backup-source/versions.tf
index fd6bbb2..c35fe66 100644
--- a/modules/aws-backup-source/versions.tf
+++ b/modules/aws-backup-source/versions.tf
@@ -7,7 +7,7 @@ terraform {
 
     aws = {
       source  = "hashicorp/aws"
-      version = "> 5"
+      version = "~> 5"
     }
 
     awscc = {
@@ -16,5 +16,5 @@ terraform {
     }
   }
 
-  required_version = ">= 1.9.5"
+  required_version = ">= 1.14.6"
 }