diff --git a/azure-cs-msi-keyvault-rbac/AppStack.cs b/azure-cs-msi-keyvault-rbac/AppStack.cs
index 2f930c795..5add8ee1c 100644
--- a/azure-cs-msi-keyvault-rbac/AppStack.cs
+++ b/azure-cs-msi-keyvault-rbac/AppStack.cs
@@ -84,7 +84,7 @@ public AppStack()
             StorageAccountName = storageAccount.Name,
             StorageContainerName = storageContainer.Name,
             Type = "Block",
-            Source = new FileArchive("./webapp/bin/Debug/netcoreapp2.2/publish"),
+            Source = new FileArchive("./webapp/bin/Debug/netcoreapp3.1/publish"),
         });
 
         var clientConfig = Output.Create(GetClientConfig.InvokeAsync());
diff --git a/azure-cs-msi-keyvault-rbac/webapp/Startup.cs b/azure-cs-msi-keyvault-rbac/webapp/Startup.cs
index 6975b7e2c..e776e7fab 100644
--- a/azure-cs-msi-keyvault-rbac/webapp/Startup.cs
+++ b/azure-cs-msi-keyvault-rbac/webapp/Startup.cs
@@ -7,6 +7,7 @@
 using Microsoft.AspNetCore.Http;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
 
 namespace webapp
 {
@@ -26,7 +27,7 @@ public void ConfigureServices(IServiceCollection services)
         }
 
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
-        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
+        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
         {
             if (env.IsDevelopment())
             {
diff --git a/azure-cs-msi-keyvault-rbac/webapp/webapp.csproj b/azure-cs-msi-keyvault-rbac/webapp/webapp.csproj
index 66c323758..148e13e93 100644
--- a/azure-cs-msi-keyvault-rbac/webapp/webapp.csproj
+++ b/azure-cs-msi-keyvault-rbac/webapp/webapp.csproj
@@ -1,12 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore" Version="2.1.7" />
-    <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.1.3" />
     <PackageReference Include="System.Data.SqlClient" Version="4.6.0" />
     <PackageReference Include="Microsoft.Azure.Services.AppAuthentication" Version="1.0.3" />
     <PackageReference Include="Microsoft.Azure.Storage.Blob" Version="10.0.3" />
diff --git a/azure-py-msi-keyvault-rbac/__main__.py b/azure-py-msi-keyvault-rbac/__main__.py
index fa97ec289..cb0583f98 100644
--- a/azure-py-msi-keyvault-rbac/__main__.py
+++ b/azure-py-msi-keyvault-rbac/__main__.py
@@ -72,7 +72,7 @@ def createFirewallRules(arg):
     storage_account_name=storage_account.name,
     storage_container_name=container.name,
     type="Block",
-    source=asset.FileArchive("./webapp/bin/Debug/netcoreapp2.2/publish")
+    source=asset.FileArchive("./webapp/bin/Debug/netcoreapp3.1/publish")
 )
 
 client_config = core.get_client_config()
diff --git a/azure-py-msi-keyvault-rbac/webapp/Startup.cs b/azure-py-msi-keyvault-rbac/webapp/Startup.cs
index 6975b7e2c..e776e7fab 100644
--- a/azure-py-msi-keyvault-rbac/webapp/Startup.cs
+++ b/azure-py-msi-keyvault-rbac/webapp/Startup.cs
@@ -7,6 +7,7 @@
 using Microsoft.AspNetCore.Http;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
 
 namespace webapp
 {
@@ -26,7 +27,7 @@ public void ConfigureServices(IServiceCollection services)
         }
 
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
-        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
+        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
         {
             if (env.IsDevelopment())
             {
diff --git a/azure-py-msi-keyvault-rbac/webapp/webapp.csproj b/azure-py-msi-keyvault-rbac/webapp/webapp.csproj
index 66c323758..148e13e93 100644
--- a/azure-py-msi-keyvault-rbac/webapp/webapp.csproj
+++ b/azure-py-msi-keyvault-rbac/webapp/webapp.csproj
@@ -1,12 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore" Version="2.1.7" />
-    <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.1.3" />
     <PackageReference Include="System.Data.SqlClient" Version="4.6.0" />
     <PackageReference Include="Microsoft.Azure.Services.AppAuthentication" Version="1.0.3" />
     <PackageReference Include="Microsoft.Azure.Storage.Blob" Version="10.0.3" />
diff --git a/azure-ts-msi-keyvault-rbac/index.ts b/azure-ts-msi-keyvault-rbac/index.ts
index 9c7aa9955..f426f70c2 100644
--- a/azure-ts-msi-keyvault-rbac/index.ts
+++ b/azure-ts-msi-keyvault-rbac/index.ts
@@ -64,7 +64,7 @@ const blob = new azure.storage.Blob("zip", {
     storageContainerName: storageContainer.name,
     type: "Block",
 
-    source: new pulumi.asset.FileArchive("./webapp/bin/Debug/netcoreapp2.2/publish"),
+    source: new pulumi.asset.FileArchive("./webapp/bin/Debug/netcoreapp3.1/publish"),
 });
 
 const clientConfig = azure.core.getClientConfig({ async: true });
diff --git a/azure-ts-msi-keyvault-rbac/webapp/Startup.cs b/azure-ts-msi-keyvault-rbac/webapp/Startup.cs
index 6975b7e2c..e776e7fab 100644
--- a/azure-ts-msi-keyvault-rbac/webapp/Startup.cs
+++ b/azure-ts-msi-keyvault-rbac/webapp/Startup.cs
@@ -7,6 +7,7 @@
 using Microsoft.AspNetCore.Http;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Hosting;
 
 namespace webapp
 {
@@ -26,7 +27,7 @@ public void ConfigureServices(IServiceCollection services)
         }
 
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
-        public void Configure(IApplicationBuilder app, IHostingEnvironment env)
+        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
         {
             if (env.IsDevelopment())
             {
diff --git a/azure-ts-msi-keyvault-rbac/webapp/webapp.csproj b/azure-ts-msi-keyvault-rbac/webapp/webapp.csproj
index 66c323758..148e13e93 100644
--- a/azure-ts-msi-keyvault-rbac/webapp/webapp.csproj
+++ b/azure-ts-msi-keyvault-rbac/webapp/webapp.csproj
@@ -1,12 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>netcoreapp2.2</TargetFramework>
+    <TargetFramework>netcoreapp3.1</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.AspNetCore" Version="2.1.7" />
-    <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="2.1.3" />
     <PackageReference Include="System.Data.SqlClient" Version="4.6.0" />
     <PackageReference Include="Microsoft.Azure.Services.AppAuthentication" Version="1.0.3" />
     <PackageReference Include="Microsoft.Azure.Storage.Blob" Version="10.0.3" />