diff --git a/src/IdentityServer/Configuration/IdentityServerApplicationBuilderExtensions.cs b/src/IdentityServer/Configuration/IdentityServerApplicationBuilderExtensions.cs
index 692a8bfa0..8ada54d8c 100644
--- a/src/IdentityServer/Configuration/IdentityServerApplicationBuilderExtensions.cs
+++ b/src/IdentityServer/Configuration/IdentityServerApplicationBuilderExtensions.cs
@@ -60,7 +60,7 @@ public static IApplicationBuilder UseIdentityServer(this IApplicationBuilder app
 
     internal static void Validate(this IApplicationBuilder app)
     {
-        var loggerFactory = app.ApplicationServices.GetService(typeof(ILoggerFactory)) as ILoggerFactory;
+        var loggerFactory = app.ApplicationServices.GetService<ILoggerFactory>();
         if (loggerFactory == null) throw new ArgumentNullException(nameof(loggerFactory));
 
         var logger = loggerFactory.CreateLogger("Duende.IdentityServer.Startup");
diff --git a/src/IdentityServer/Hosting/FederatedSignOut/AuthenticationRequestHandlerWrapper.cs b/src/IdentityServer/Hosting/FederatedSignOut/AuthenticationRequestHandlerWrapper.cs
index 76e59d29f..0a61a9489 100644
--- a/src/IdentityServer/Hosting/FederatedSignOut/AuthenticationRequestHandlerWrapper.cs
+++ b/src/IdentityServer/Hosting/FederatedSignOut/AuthenticationRequestHandlerWrapper.cs
@@ -8,6 +8,7 @@
 using Microsoft.Extensions.Logging;
 using System;
 using System.Threading.Tasks;
+using Microsoft.Extensions.DependencyInjection;
 
 namespace Duende.IdentityServer.Hosting.FederatedSignOut;
 
@@ -24,7 +25,7 @@ public AuthenticationRequestHandlerWrapper(IAuthenticationRequestHandler inner,
         _inner = inner;
         _context = httpContextAccessor.HttpContext;
 
-        var factory = (ILoggerFactory)_context.RequestServices.GetService(typeof(ILoggerFactory));
+        var factory = _context.RequestServices.GetService<ILoggerFactory>();
         _logger = factory?.CreateLogger(GetType());
     }