diff --git a/aspnetcore/tutorials/getting-started-with-swashbuckle.md b/aspnetcore/tutorials/getting-started-with-swashbuckle.md
index 0eaad11ab382..29c2a6f1e2c0 100644
--- a/aspnetcore/tutorials/getting-started-with-swashbuckle.md
+++ b/aspnetcore/tutorials/getting-started-with-swashbuckle.md
@@ -5,7 +5,7 @@ description: Learn how to add Swashbuckle to your ASP.NET Core web API project t
 ms.author: wpickett
 monikerRange: ">= aspnetcore-3.1 <= aspnetcore-8.0"
 ms.custom: mvc
-ms.date: 08/27/2024
+ms.date: 8/27/2024
 uid: tutorials/get-started-with-swashbuckle
 ---
 # Get started with Swashbuckle and ASP.NET Core
diff --git a/aspnetcore/tutorials/getting-started-with-swashbuckle/includes/getting-started-with-swashbuckle8.md b/aspnetcore/tutorials/getting-started-with-swashbuckle/includes/getting-started-with-swashbuckle8.md
index e8ee17e7d119..37cfe0581c83 100644
--- a/aspnetcore/tutorials/getting-started-with-swashbuckle/includes/getting-started-with-swashbuckle8.md
+++ b/aspnetcore/tutorials/getting-started-with-swashbuckle/includes/getting-started-with-swashbuckle8.md
@@ -1,6 +1,9 @@
 
 :::moniker range=">= aspnetcore-6.0 < aspnetcore-9.0"
 
+> [!NOTE]
+> Swashbuckle is not available in .NET 9 and later. For an alternative, see <xref:fundamentals/openapi/overview?view=aspnetcore-9.0&preserve-view=true>.
+
 There are three main components to Swashbuckle:
 
 * [Swashbuckle.AspNetCore.Swagger](https://www.nuget.org/packages/Swashbuckle.AspNetCore.Swagger/): a Swagger object model and middleware to expose `SwaggerDocument` objects as JSON endpoints.