diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 2986ac1..25da1fe 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -9,12 +9,12 @@ repos:
   - repo: https://github.com/antonbabenko/pre-commit-terraform
     rev: v1.74.1
     hooks:
-      - id: terraform_fmt
-      - id: terraform_validate
       - id: terraform_docs
         args:
-          - '--args=--lockfile=false'
+          - --args=--lockfile=false
           - --args=--config=.tfdocs-config.yml
+      - id: terraform_fmt
+      - id: terraform_validate
       - id: terraform_tflint
         args:
           - '--args=--only=terraform_deprecated_interpolation'
diff --git a/.tfdocs-config.yml b/.tfdocs-config.yml
index 1752929..37959ce 100644
--- a/.tfdocs-config.yml
+++ b/.tfdocs-config.yml
@@ -79,7 +79,7 @@ settings:
   hide-empty: false
   html: true
   indent: 3
-  lockfile: true
+  lockfile: false
   read-comments: true
   required: true
   sensitive: true
diff --git a/README.md b/README.md
index f268093..ed6402f 100644
--- a/README.md
+++ b/README.md
@@ -259,7 +259,7 @@ locals {
 
 | Name | Version |
 |------|---------|
-| <a name="provider_aws"></a> [aws](#provider\_aws) | 4.38.0 |
+| <a name="provider_aws"></a> [aws](#provider\_aws) | >= 4.9, <5 |
 
 ----
 ### Requirements
@@ -267,7 +267,7 @@ locals {
 | Name | Version |
 |------|---------|
 | <a name="requirement_terraform"></a> [terraform](#requirement\_terraform) | >= 0.13.1 |
-| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 4.9 |
+| <a name="requirement_aws"></a> [aws](#requirement\_aws) | >= 4.9, <5 |
 | <a name="requirement_http"></a> [http](#requirement\_http) | 3.0.1 |
 
 ----
diff --git a/tests/conftest.py b/tests/conftest.py
index e97f5d1..85653c9 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -42,7 +42,6 @@ def config(config_file) -> dict:
         return {}
     else:
         raise FileNotFoundError(config_file)
-    return config
 
 
 @pytest.fixture(scope="session")
@@ -51,13 +50,6 @@ def terraform_default_variables(request, config):
     variables = {}
     for name, value in config.get("variables", {}).items():
         variables[name] = value
-        """value = None
-        if variable_config.get("parameter", False):
-            value = request.config.getoption(variable_config["parameter"])
-        if variable_config.get("required", False):
-            if value is None:
-                raise Exception(f"Variable {variable} must be specified.")
-        variables[variable] = value"""
     return variables
 
 
@@ -148,5 +140,9 @@ def terraform_apply_and_output(test_name, terraform_config, variables=None):
     try:
         tf.apply()
         yield tf.output()
+    # Shorten the default exception message.
+    except tftest.TerraformTestError as e:
+        tf.destroy(**{"auto_approve": True})
+        raise tftest.TerraformTestError(e.cmd_error) from e
     finally:
         tf.destroy(**{"auto_approve": True})
diff --git a/versions.tf b/versions.tf
index 4df33fe..2b1559f 100644
--- a/versions.tf
+++ b/versions.tf
@@ -4,7 +4,7 @@ terraform {
   required_providers {
     aws = {
       source  = "hashicorp/aws"
-      version = ">= 4.9"
+      version = ">= 4.9, <5"
     }
     http = {
       source  = "hashicorp/http"