diff --git a/.vitepress/config.ts b/.vitepress/config.ts
index 5932009..e3a3f8a 100644
--- a/.vitepress/config.ts
+++ b/.vitepress/config.ts
@@ -71,7 +71,7 @@ export default defineConfigWithTheme<ThemeConfig>({
                 link: 'https://spark.laravel.com/docs',
                 current: true,
             },
-            { text: 'v4.x', link: 'https://github.com/laravel/spark-next-docs/tree/4.x' },
+            { text: 'v4.x', link: 'https://github.com/laravel/spark-next-docs/tree/4.x/src' },
             { text: 'v3.x', link: 'https://github.com/laravel/spark-next-docs/tree/3.x' },
             { text: 'v2.x', link: 'https://github.com/laravel/spark-next-docs/tree/2.x' },
             { text: 'v1.x', link: 'https://github.com/laravel/spark-next-docs/tree/1.x' },
diff --git a/src/spark-paddle/configuration.md b/src/spark-paddle/configuration.md
index faf40ad..defcc20 100644
--- a/src/spark-paddle/configuration.md
+++ b/src/spark-paddle/configuration.md
@@ -6,6 +6,11 @@
 
 In the following documentation, we will discuss how to configure a Laravel Spark installation when using the [Paddle](https://paddle.com) payment provider. All of Spark's configuration options are housed in your application's `config/spark.php` configuration file.
 
+::: warning Paddle Billing
+
+Spark Paddle 5.x supports Paddle Billing. If you are still using Paddle Classic you should continue to use [Spark Paddle 4.x](https://github.com/laravel/spark-next-docs/tree/4.x/src).
+:::
+
 ## Paddle Configuration
 
 Of course, to use Paddle as a payment provider for your Laravel Spark application you must have an active [Paddle account](https://paddle.com). **While you are developing your application, you may use the [Paddle Sandbox](https://sandbox-vendors.paddle.com/)**.