diff --git a/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/EmptyWeb-CSharp/Program.cs b/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/EmptyWeb-CSharp/Program.cs
index 4fda9f8d66..a07c6032e5 100644
--- a/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/EmptyWeb-CSharp/Program.cs
+++ b/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/EmptyWeb-CSharp/Program.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
@@ -6,6 +6,7 @@ using System.Threading.Tasks;
 using Microsoft.AspNetCore;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Logging;
 
 namespace Company.WebApplication1
@@ -14,11 +15,14 @@ namespace Company.WebApplication1
     {
         public static void Main(string[] args)
         {
-            CreateWebHostBuilder(args).Build().Run();
+            CreateHostBuilder(args).Build().Run();
         }
 
-        public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
-            WebHost.CreateDefaultBuilder(args)
-                .UseStartup<Startup>();
+        public static IHostBuilder CreateHostBuilder(string[] args) =>
+            Host.CreateDefaultBuilder(args)
+                .ConfigureWebHostDefaults(webBuilder =>
+                {
+                    webBuilder.UseStartup<Startup>();
+                });
     }
 }
diff --git a/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/EmptyWeb-FSharp/Program.fs b/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/EmptyWeb-FSharp/Program.fs
index 5173fe80c3..91d8b747cd 100644
--- a/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/EmptyWeb-FSharp/Program.fs
+++ b/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/EmptyWeb-FSharp/Program.fs
@@ -8,18 +8,20 @@ open System.Threading.Tasks
 open Microsoft.AspNetCore
 open Microsoft.AspNetCore.Hosting
 open Microsoft.Extensions.Configuration
+open Microsoft.Extensions.Hosting
 open Microsoft.Extensions.Logging
 
 module Program =
     let exitCode = 0
 
-    let CreateWebHostBuilder args =
-        WebHost
-            .CreateDefaultBuilder(args)
-            .UseStartup<Startup>();            
+    let CreateHostBuilder args =
+        Host.CreateDefaultBuilder(args)
+            .ConfigureWebHostDefaults(fun webBuilder ->
+                webBuilder.UseStartup<Startup>() |> ignore
+            )
 
     [<EntryPoint>]
     let main args =
-        CreateWebHostBuilder(args).Build().Run()
+        CreateHostBuilder(args).Build().Run()
 
         exitCode
diff --git a/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/StarterWeb-CSharp/Program.cs b/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/StarterWeb-CSharp/Program.cs
index 4fda9f8d66..a07c6032e5 100644
--- a/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/StarterWeb-CSharp/Program.cs
+++ b/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/StarterWeb-CSharp/Program.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
@@ -6,6 +6,7 @@ using System.Threading.Tasks;
 using Microsoft.AspNetCore;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Logging;
 
 namespace Company.WebApplication1
@@ -14,11 +15,14 @@ namespace Company.WebApplication1
     {
         public static void Main(string[] args)
         {
-            CreateWebHostBuilder(args).Build().Run();
+            CreateHostBuilder(args).Build().Run();
         }
 
-        public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
-            WebHost.CreateDefaultBuilder(args)
-                .UseStartup<Startup>();
+        public static IHostBuilder CreateHostBuilder(string[] args) =>
+            Host.CreateDefaultBuilder(args)
+                .ConfigureWebHostDefaults(webBuilder =>
+                {
+                    webBuilder.UseStartup<Startup>();
+                });
     }
 }
diff --git a/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/StarterWeb-FSharp/Program.fs b/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/StarterWeb-FSharp/Program.fs
index 6734a26d7b..91d8b747cd 100644
--- a/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/StarterWeb-FSharp/Program.fs
+++ b/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/StarterWeb-FSharp/Program.fs
@@ -1,4 +1,4 @@
-namespace Company.WebApplication1
+namespace Company.WebApplication1
 
 open System
 open System.Collections.Generic
@@ -8,18 +8,20 @@ open System.Threading.Tasks
 open Microsoft.AspNetCore
 open Microsoft.AspNetCore.Hosting
 open Microsoft.Extensions.Configuration
+open Microsoft.Extensions.Hosting
 open Microsoft.Extensions.Logging
 
 module Program =
     let exitCode = 0
 
-    let CreateWebHostBuilder args =
-        WebHost
-            .CreateDefaultBuilder(args)
-            .UseStartup<Startup>();
+    let CreateHostBuilder args =
+        Host.CreateDefaultBuilder(args)
+            .ConfigureWebHostDefaults(fun webBuilder ->
+                webBuilder.UseStartup<Startup>() |> ignore
+            )
 
     [<EntryPoint>]
     let main args =
-        CreateWebHostBuilder(args).Build().Run()
+        CreateHostBuilder(args).Build().Run()
 
         exitCode
diff --git a/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/WebApi-CSharp/Program.cs b/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/WebApi-CSharp/Program.cs
index 4fda9f8d66..a07c6032e5 100644
--- a/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/WebApi-CSharp/Program.cs
+++ b/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/WebApi-CSharp/Program.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.IO;
 using System.Linq;
@@ -6,6 +6,7 @@ using System.Threading.Tasks;
 using Microsoft.AspNetCore;
 using Microsoft.AspNetCore.Hosting;
 using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.Hosting;
 using Microsoft.Extensions.Logging;
 
 namespace Company.WebApplication1
@@ -14,11 +15,14 @@ namespace Company.WebApplication1
     {
         public static void Main(string[] args)
         {
-            CreateWebHostBuilder(args).Build().Run();
+            CreateHostBuilder(args).Build().Run();
         }
 
-        public static IWebHostBuilder CreateWebHostBuilder(string[] args) =>
-            WebHost.CreateDefaultBuilder(args)
-                .UseStartup<Startup>();
+        public static IHostBuilder CreateHostBuilder(string[] args) =>
+            Host.CreateDefaultBuilder(args)
+                .ConfigureWebHostDefaults(webBuilder =>
+                {
+                    webBuilder.UseStartup<Startup>();
+                });
     }
 }
diff --git a/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/WebApi-FSharp/Program.fs b/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/WebApi-FSharp/Program.fs
index c37ddcb601..91d8b747cd 100644
--- a/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/WebApi-FSharp/Program.fs
+++ b/src/Templating/src/Microsoft.DotNet.Web.ProjectTemplates/content/WebApi-FSharp/Program.fs
@@ -8,18 +8,20 @@ open System.Threading.Tasks
 open Microsoft.AspNetCore
 open Microsoft.AspNetCore.Hosting
 open Microsoft.Extensions.Configuration
+open Microsoft.Extensions.Hosting
 open Microsoft.Extensions.Logging
 
 module Program =
     let exitCode = 0
 
-    let CreateWebHostBuilder args =
-        WebHost
-            .CreateDefaultBuilder(args)
-            .UseStartup<Startup>();
+    let CreateHostBuilder args =
+        Host.CreateDefaultBuilder(args)
+            .ConfigureWebHostDefaults(fun webBuilder ->
+                webBuilder.UseStartup<Startup>() |> ignore
+            )
 
     [<EntryPoint>]
     let main args =
-        CreateWebHostBuilder(args).Build().Run()
+        CreateHostBuilder(args).Build().Run()
 
         exitCode