diff --git a/Lombiq.JsonEditor/Controllers/AdminController.cs b/Lombiq.JsonEditor/Controllers/AdminController.cs
index 22ee617..509ed55 100644
--- a/Lombiq.JsonEditor/Controllers/AdminController.cs
+++ b/Lombiq.JsonEditor/Controllers/AdminController.cs
@@ -1,13 +1,13 @@
 using AngleSharp.Common;
 using Lombiq.HelpfulLibraries.OrchardCore.Contents;
 using Lombiq.HelpfulLibraries.OrchardCore.DependencyInjection;
-using Lombiq.HelpfulLibraries.OrchardCore.Mvc;
 using Lombiq.JsonEditor.ViewModels;
 using Microsoft.AspNetCore.Authorization;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.AspNetCore.Mvc.Localization;
 using Microsoft.AspNetCore.Mvc.ViewFeatures;
 using Microsoft.Extensions.Localization;
+using OrchardCore.Admin;
 using OrchardCore.ContentManagement;
 using OrchardCore.ContentManagement.Metadata;
 using OrchardCore.Contents;
@@ -58,7 +58,7 @@ public AdminController(
         H = services.HtmlLocalizer.Value;
     }
 
-    [AdminRoute("Contents/ContentItems/{contentItemId}/Edit/Json")]
+    [Admin("Contents/ContentItems/{contentItemId}/Edit/Json")]
     public async Task<IActionResult> Edit(string contentItemId)
     {
         if (string.IsNullOrWhiteSpace(contentItemId) ||
diff --git a/Lombiq.JsonEditor/Startup.cs b/Lombiq.JsonEditor/Startup.cs
index 41ced1d..47c104f 100644
--- a/Lombiq.JsonEditor/Startup.cs
+++ b/Lombiq.JsonEditor/Startup.cs
@@ -1,5 +1,4 @@
 using Lombiq.HelpfulLibraries.OrchardCore.DependencyInjection;
-using Lombiq.HelpfulLibraries.OrchardCore.Mvc;
 using Lombiq.JsonEditor.Constants;
 using Lombiq.JsonEditor.Drivers;
 using Lombiq.JsonEditor.Fields;
@@ -43,6 +42,5 @@ public override void ConfigureServices(IServiceCollection services)
         services.AddOrchardServices();
         services.AddScoped<ApiController>();
         services.AddContentSecurityPolicyProvider<JsonEditorContentSecurityPolicyProvider>();
-        AdminRouteAttributeRouteMapper.AddToServices(services);
     }
 }