diff --git a/samples/DatabaseErrorPageSample/Startup.cs b/samples/DatabaseErrorPageSample/Startup.cs
index 4a1186c260..2247b52ba1 100644
--- a/samples/DatabaseErrorPageSample/Startup.cs
+++ b/samples/DatabaseErrorPageSample/Startup.cs
@@ -29,7 +29,6 @@ namespace DatabaseErrorPageSample
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultHostingConfiguration(args)
                 .UseKestrel()
                 .UseIISIntegration()
                 .UseStartup<Startup>()
diff --git a/samples/DeveloperExceptionPageSample/Startup.cs b/samples/DeveloperExceptionPageSample/Startup.cs
index 5c723b6edc..4da64e1fbe 100644
--- a/samples/DeveloperExceptionPageSample/Startup.cs
+++ b/samples/DeveloperExceptionPageSample/Startup.cs
@@ -22,7 +22,6 @@ namespace DeveloperExceptionPageSample
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultHostingConfiguration(args)
                 .UseKestrel()
                 .UseIISIntegration()
                 .UseStartup<Startup>()
diff --git a/samples/ElmPageSample/Startup.cs b/samples/ElmPageSample/Startup.cs
index 0c0bc86e2c..7fa96ac08c 100644
--- a/samples/ElmPageSample/Startup.cs
+++ b/samples/ElmPageSample/Startup.cs
@@ -30,7 +30,6 @@ namespace ElmPageSample
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultHostingConfiguration(args)
                 .UseKestrel()
                 .UseIISIntegration()
                 .UseStartup<Startup>()
diff --git a/samples/ExceptionHandlerSample/Startup.cs b/samples/ExceptionHandlerSample/Startup.cs
index baa4ab2183..cf2e57429b 100644
--- a/samples/ExceptionHandlerSample/Startup.cs
+++ b/samples/ExceptionHandlerSample/Startup.cs
@@ -59,7 +59,6 @@ namespace ExceptionHandlerSample
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultHostingConfiguration(args)
                 .UseKestrel()
                 .UseIISIntegration()
                 .UseStartup<Startup>()
diff --git a/samples/MiddlewareAnalysisSample/Startup.cs b/samples/MiddlewareAnalysisSample/Startup.cs
index 49bcfc1464..f93a6a31a1 100644
--- a/samples/MiddlewareAnalysisSample/Startup.cs
+++ b/samples/MiddlewareAnalysisSample/Startup.cs
@@ -85,7 +85,6 @@ namespace MiddlewareAnaysisSample
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultHostingConfiguration(args)
                 .UseKestrel()
                 .UseIISIntegration()
                 .UseStartup<Startup>()
diff --git a/samples/RuntimeInfoPageSample/Startup.cs b/samples/RuntimeInfoPageSample/Startup.cs
index 95131b8712..b668df0a64 100644
--- a/samples/RuntimeInfoPageSample/Startup.cs
+++ b/samples/RuntimeInfoPageSample/Startup.cs
@@ -22,7 +22,6 @@ namespace RuntimeInfoPageSample
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultHostingConfiguration(args)
                 .UseKestrel()
                 .UseIISIntegration()
                 .UseStartup<Startup>()
diff --git a/samples/StatusCodePagesSample/Startup.cs b/samples/StatusCodePagesSample/Startup.cs
index 40ff992178..594cc19340 100644
--- a/samples/StatusCodePagesSample/Startup.cs
+++ b/samples/StatusCodePagesSample/Startup.cs
@@ -105,7 +105,6 @@ namespace StatusCodePagesSample
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultHostingConfiguration(args)
                 .UseKestrel()
                 .UseIISIntegration()
                 .UseStartup<Startup>()
diff --git a/samples/WelcomePageSample/Startup.cs b/samples/WelcomePageSample/Startup.cs
index b9efcf783b..866b10d788 100644
--- a/samples/WelcomePageSample/Startup.cs
+++ b/samples/WelcomePageSample/Startup.cs
@@ -13,7 +13,6 @@ namespace WelcomePageSample
         public static void Main(string[] args)
         {
             var host = new WebHostBuilder()
-                .UseDefaultHostingConfiguration(args)
                 .UseKestrel()
                 .UseIISIntegration()
                 .UseStartup<Startup>()