diff --git a/src/Configuration.KeyPerFile/src/Microsoft.Extensions.Configuration.KeyPerFile.csproj b/src/Configuration.KeyPerFile/src/Microsoft.Extensions.Configuration.KeyPerFile.csproj
index 10f41fa9f4..77664416f9 100644
--- a/src/Configuration.KeyPerFile/src/Microsoft.Extensions.Configuration.KeyPerFile.csproj
+++ b/src/Configuration.KeyPerFile/src/Microsoft.Extensions.Configuration.KeyPerFile.csproj
@@ -2,8 +2,8 @@
 
   <PropertyGroup>
     <Description>Configuration provider that uses files in a directory for Microsoft.Extensions.Configuration.</Description>
-    <TargetFrameworks>netstandard2.0;netcoreapp3.0</TargetFrameworks>
-    <TargetFrameworks Condition="'$(DotNetBuildFromSource)' == 'true'">netcoreapp3.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;netcoreapp5.0</TargetFrameworks>
+    <TargetFrameworks Condition="'$(DotNetBuildFromSource)' == 'true'">netcoreapp5.0</TargetFrameworks>
     <IsPackable>true</IsPackable>
     <IsShipping>true</IsShipping>
   </PropertyGroup>
diff --git a/src/HealthChecks/Abstractions/src/Microsoft.Extensions.Diagnostics.HealthChecks.Abstractions.csproj b/src/HealthChecks/Abstractions/src/Microsoft.Extensions.Diagnostics.HealthChecks.Abstractions.csproj
index f41b257c63..e5cf8c251a 100644
--- a/src/HealthChecks/Abstractions/src/Microsoft.Extensions.Diagnostics.HealthChecks.Abstractions.csproj
+++ b/src/HealthChecks/Abstractions/src/Microsoft.Extensions.Diagnostics.HealthChecks.Abstractions.csproj
@@ -7,8 +7,8 @@ Commonly Used Types
 Microsoft.Extensions.Diagnostics.HealthChecks.IHealthCheck
     </Description>
     <RootNamespace>Microsoft.Extensions.Diagnostics.HealthChecks</RootNamespace>
-    <TargetFrameworks>netstandard2.0;netcoreapp3.0</TargetFrameworks>
-    <TargetFrameworks Condition="'$(DotNetBuildFromSource)' == 'true'">netcoreapp3.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;netcoreapp5.0</TargetFrameworks>
+    <TargetFrameworks Condition="'$(DotNetBuildFromSource)' == 'true'">netcoreapp5.0</TargetFrameworks>
     <NoWarn>$(NoWarn);CS1591</NoWarn>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <PackageTags>diagnostics;healthchecks</PackageTags>
diff --git a/src/HealthChecks/HealthChecks/src/Microsoft.Extensions.Diagnostics.HealthChecks.csproj b/src/HealthChecks/HealthChecks/src/Microsoft.Extensions.Diagnostics.HealthChecks.csproj
index 4005685011..d3b3f82b0d 100644
--- a/src/HealthChecks/HealthChecks/src/Microsoft.Extensions.Diagnostics.HealthChecks.csproj
+++ b/src/HealthChecks/HealthChecks/src/Microsoft.Extensions.Diagnostics.HealthChecks.csproj
@@ -6,8 +6,8 @@ Commonly Used Types:
 Microsoft.Extensions.Diagnostics.HealthChecks.HealthCheckService
 Microsoft.Extensions.Diagnostics.HealthChecks.IHealthChecksBuilder
     </Description>
-    <TargetFrameworks>netstandard2.0;netcoreapp3.0</TargetFrameworks>
-    <TargetFrameworks Condition="'$(DotNetBuildFromSource)' == 'true'">netcoreapp3.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;netcoreapp5.0</TargetFrameworks>
+    <TargetFrameworks Condition="'$(DotNetBuildFromSource)' == 'true'">netcoreapp5.0</TargetFrameworks>
     <NoWarn>$(NoWarn);CS1591</NoWarn>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <PackageTags>diagnostics;healthchecks</PackageTags>
diff --git a/src/JSInterop/Microsoft.JSInterop/src/Microsoft.JSInterop.csproj b/src/JSInterop/Microsoft.JSInterop/src/Microsoft.JSInterop.csproj
index 044c843b28..3021d18cc3 100644
--- a/src/JSInterop/Microsoft.JSInterop/src/Microsoft.JSInterop.csproj
+++ b/src/JSInterop/Microsoft.JSInterop/src/Microsoft.JSInterop.csproj
@@ -1,8 +1,8 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;netcoreapp3.0</TargetFrameworks>
-    <TargetFrameworks Condition="'$(DotNetBuildFromSource)' == 'true'">netcoreapp3.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;netcoreapp5.0</TargetFrameworks>
+    <TargetFrameworks Condition="'$(DotNetBuildFromSource)' == 'true'">netcoreapp5.0</TargetFrameworks>
     <Description>Abstractions and features for interop between .NET and JavaScript code.</Description>
     <PackageTags>javascript;interop</PackageTags>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
diff --git a/src/Localization/Abstractions/src/Microsoft.Extensions.Localization.Abstractions.csproj b/src/Localization/Abstractions/src/Microsoft.Extensions.Localization.Abstractions.csproj
index 09b8bf65b7..919d4f3d28 100644
--- a/src/Localization/Abstractions/src/Microsoft.Extensions.Localization.Abstractions.csproj
+++ b/src/Localization/Abstractions/src/Microsoft.Extensions.Localization.Abstractions.csproj
@@ -6,8 +6,8 @@
 Commonly used types:
 Microsoft.Extensions.Localization.IStringLocalizer
 Microsoft.Extensions.Localization.IStringLocalizer&lt;T&gt;</Description>
-    <TargetFrameworks>netstandard2.0;netcoreapp3.0</TargetFrameworks>
-    <TargetFrameworks Condition="'$(DotNetBuildFromSource)' == 'true'">netcoreapp3.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;netcoreapp5.0</TargetFrameworks>
+    <TargetFrameworks Condition="'$(DotNetBuildFromSource)' == 'true'">netcoreapp5.0</TargetFrameworks>
     <NoWarn>$(NoWarn);CS1591</NoWarn>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <PackageTags>localization</PackageTags>
diff --git a/src/Localization/Localization/src/Microsoft.Extensions.Localization.csproj b/src/Localization/Localization/src/Microsoft.Extensions.Localization.csproj
index 86ebaf1970..1cfdc34dfb 100644
--- a/src/Localization/Localization/src/Microsoft.Extensions.Localization.csproj
+++ b/src/Localization/Localization/src/Microsoft.Extensions.Localization.csproj
@@ -3,8 +3,8 @@
   <PropertyGroup>
     <Product>Microsoft .NET Extensions</Product>
     <Description>Application localization services and default implementation based on ResourceManager to load localized assembly resources.</Description>
-    <TargetFrameworks>netstandard2.0;netcoreapp3.0</TargetFrameworks>
-    <TargetFrameworks Condition="'$(DotNetBuildFromSource)' == 'true'">netcoreapp3.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;netcoreapp5.0</TargetFrameworks>
+    <TargetFrameworks Condition="'$(DotNetBuildFromSource)' == 'true'">netcoreapp5.0</TargetFrameworks>
     <NoWarn>$(NoWarn);CS1591</NoWarn>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <PackageTags>localization</PackageTags>
diff --git a/src/WebEncoders/src/Microsoft.Extensions.WebEncoders.csproj b/src/WebEncoders/src/Microsoft.Extensions.WebEncoders.csproj
index 2ed725eac7..f4c4294413 100644
--- a/src/WebEncoders/src/Microsoft.Extensions.WebEncoders.csproj
+++ b/src/WebEncoders/src/Microsoft.Extensions.WebEncoders.csproj
@@ -2,8 +2,8 @@
 
   <PropertyGroup>
     <Description>Contains registration and configuration APIs to add the core framework encoders to a dependency injection container.</Description>
-    <TargetFrameworks>netstandard2.0;netcoreapp3.0</TargetFrameworks>
-    <TargetFrameworks Condition="'$(DotNetBuildFromSource)' == 'true'">netcoreapp3.0</TargetFrameworks>
+    <TargetFrameworks>netstandard2.0;netcoreapp5.0</TargetFrameworks>
+    <TargetFrameworks Condition="'$(DotNetBuildFromSource)' == 'true'">netcoreapp5.0</TargetFrameworks>
     <NoWarn>$(NoWarn);CS1591</NoWarn>
     <GenerateDocumentationFile>true</GenerateDocumentationFile>
     <PackageTags>aspnetcore</PackageTags>