diff --git a/src/Microsoft.AspNetCore.Mvc.RazorPages/DependencyInjection/MvcRazorPagesMvcCoreBuilderExtensions.cs b/src/Microsoft.AspNetCore.Mvc.RazorPages/DependencyInjection/MvcRazorPagesMvcCoreBuilderExtensions.cs
index 7b976eafcd..8d6e48bb0e 100644
--- a/src/Microsoft.AspNetCore.Mvc.RazorPages/DependencyInjection/MvcRazorPagesMvcCoreBuilderExtensions.cs
+++ b/src/Microsoft.AspNetCore.Mvc.RazorPages/DependencyInjection/MvcRazorPagesMvcCoreBuilderExtensions.cs
@@ -118,7 +118,9 @@ namespace Microsoft.Extensions.DependencyInjection
             services.TryAddSingleton<IPageHandlerMethodSelector, DefaultPageHandlerMethodSelector>();
 
             // Page model binding
+#pragma warning disable CS0618 // Type or member is obsolete
             services.TryAddSingleton<PageArgumentBinder, DefaultPageArgumentBinder>();
+#pragma warning restore CS0618 // Type or member is obsolete
 
             // Action executors
             services.TryAddSingleton<PageResultExecutor>();
diff --git a/src/Microsoft.AspNetCore.Mvc.RazorPages/Infrastructure/PageArgumentBinder.cs b/src/Microsoft.AspNetCore.Mvc.RazorPages/Infrastructure/PageArgumentBinder.cs
index 9af8eedfd4..a4d8f5cba6 100644
--- a/src/Microsoft.AspNetCore.Mvc.RazorPages/Infrastructure/PageArgumentBinder.cs
+++ b/src/Microsoft.AspNetCore.Mvc.RazorPages/Infrastructure/PageArgumentBinder.cs
@@ -7,6 +7,7 @@ using Microsoft.AspNetCore.Mvc.ModelBinding;
 
 namespace Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure
 {
+    [Obsolete("This type is obsolete and will be removed in a future version.")]
     public abstract class PageArgumentBinder
     {
         public async Task<object> BindModelAsync(PageContext context, Type type, object @default, string name)
diff --git a/src/Microsoft.AspNetCore.Mvc.RazorPages/Internal/DefaultPageArgumentBinder.cs b/src/Microsoft.AspNetCore.Mvc.RazorPages/Internal/DefaultPageArgumentBinder.cs
index 67218d4e8a..7b3310bbdd 100644
--- a/src/Microsoft.AspNetCore.Mvc.RazorPages/Internal/DefaultPageArgumentBinder.cs
+++ b/src/Microsoft.AspNetCore.Mvc.RazorPages/Internal/DefaultPageArgumentBinder.cs
@@ -9,7 +9,9 @@ using Microsoft.AspNetCore.Mvc.RazorPages.Infrastructure;
 
 namespace Microsoft.AspNetCore.Mvc.RazorPages.Internal
 {
+#pragma warning disable CS0618 // Type or member is obsolete
     public class DefaultPageArgumentBinder : PageArgumentBinder
+#pragma warning restore CS0618 // Type or member is obsolete
     {
         private readonly ParameterBinder _parameterBinder;
 
diff --git a/test/Microsoft.AspNetCore.Mvc.RazorPages.Test/Internal/ExecutorFactoryTest.cs b/test/Microsoft.AspNetCore.Mvc.RazorPages.Test/Internal/ExecutorFactoryTest.cs
index f0339d2018..a5a58227e0 100644
--- a/test/Microsoft.AspNetCore.Mvc.RazorPages.Test/Internal/ExecutorFactoryTest.cs
+++ b/test/Microsoft.AspNetCore.Mvc.RazorPages.Test/Internal/ExecutorFactoryTest.cs
@@ -327,14 +327,5 @@ namespace Microsoft.AspNetCore.Mvc.RazorPages.Test.Internal
                 throw new NotImplementedException();
             }
         }
-
-        private class MockBinder : PageArgumentBinder
-        {
-            protected override Task<ModelBindingResult> BindAsync(PageContext context, object value, string name, Type type)
-            {
-                var result = ModelBindingResult.Failed();
-                return Task.FromResult(result);
-            }
-        }
     }
 }
diff --git a/test/Microsoft.AspNetCore.Mvc.RazorPages.Test/PageModelTest.cs b/test/Microsoft.AspNetCore.Mvc.RazorPages.Test/PageModelTest.cs
index 11391095e5..6d0913d394 100644
--- a/test/Microsoft.AspNetCore.Mvc.RazorPages.Test/PageModelTest.cs
+++ b/test/Microsoft.AspNetCore.Mvc.RazorPages.Test/PageModelTest.cs
@@ -1942,13 +1942,5 @@ namespace Microsoft.AspNetCore.Mvc.RazorPages
                 throw new NotImplementedException();
             }
         }
-
-        private class TestPageArgumentBinder : PageArgumentBinder
-        {
-            protected override Task<ModelBindingResult> BindAsync(PageContext context, object value, string name, Type type)
-            {
-                return Task.FromResult(ModelBindingResult.Success(Guid.NewGuid()));
-            }
-        }
     }
 }