diff --git a/src/Humanizer.Tests/ApiApprover/PublicApiApprovalTest.Approve_Public_Api.Net4_8.verified.txt b/src/Humanizer.Tests/ApiApprover/PublicApiApprovalTest.Approve_Public_Api.Net4_8.verified.txt
index 4afeebef8..c98c317c4 100644
--- a/src/Humanizer.Tests/ApiApprover/PublicApiApprovalTest.Approve_Public_Api.Net4_8.verified.txt
+++ b/src/Humanizer.Tests/ApiApprover/PublicApiApprovalTest.Approve_Public_Api.Net4_8.verified.txt
@@ -1,6 +1,6 @@
 [assembly: System.Resources.NeutralResourcesLanguage("en")]
 [assembly: System.Runtime.CompilerServices.InternalsVisibleTo(@"Humanizer.Tests, PublicKey=0024000004800000940000000602000000240000525341310004000001000100F9104F5F9BDB168AE140366EB1CD84C469B020EA3423D5D29996D5214CE2BD9B7C0BA3EAD1CA545C4399668AB8911E61CC1CC83C7DF6D50FD6B781365B467E65173F40A11C957D27C5AA0CB0F8DA9C91C988203CC8AEF1468C74A472839D0FD870DA8D13A4DC6B3AAFDAF0384D8E18E393C613D88BF02A64467A119902204FCC")]
-[assembly: System.Runtime.Versioning.TargetFramework(".NETStandard,Version=v2.0", FrameworkDisplayName=".NET Standard 2.0")]
+[assembly: System.Runtime.Versioning.TargetFramework(".NETFramework,Version=v4.8", FrameworkDisplayName=".NET Framework 4.8")]
 namespace Humanizer
 {
     public class ByteRate
diff --git a/src/Humanizer/Humanizer.csproj b/src/Humanizer/Humanizer.csproj
index 7e72992f3..339f6e9bf 100644
--- a/src/Humanizer/Humanizer.csproj
+++ b/src/Humanizer/Humanizer.csproj
@@ -1,6 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk">  
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;net6.0;net7.0;net8.0</TargetFrameworks>    
+    <TargetFrameworks>netstandard2.0;net462;net472;net48;net6.0;net7.0;net8.0</TargetFrameworks>    
     <Authors>Mehdi Khalili, Claire Novotny</Authors>
     <PackageLicenseExpression>MIT</PackageLicenseExpression>
     <PackageProjectUrl>https://github.com/Humanizr/Humanizer</PackageProjectUrl>
@@ -16,7 +16,11 @@
   </PropertyGroup>  
   <ItemGroup>
     <Using Remove="System.Net.Http" />
-    <PackageReference Include="System.ComponentModel.Annotations" Version="4.3.0" Condition="'$(TargetFramework)' == 'netstandard2.0' " />
+    <PackageReference Include="Polyfill" Version="2.3.0" PrivateAssets="all" />
+    <PackageReference Include="System.Collections.Immutable" Version="8.0.0" Condition="'$(TargetFramework)' != 'net8.0'" />
+    <PackageReference Include="System.ValueTuple" Version="4.5.0" Condition="$(TargetFramework.StartsWith('net46')) or (TargetFramework) != '.NETStandard'" />
+    <PackageReference Include="System.Memory" Version="4.5.5" Condition="$(TargetFramework) != '.NETStandard' or $(TargetFrameworkIdentifier) == '.NETFramework'" />
+    <PackageReference Include="System.ComponentModel.Annotations" Version="4.3.0" Condition="'$(TargetFramework)' == 'netstandard2.0' or $(TargetFrameworkIdentifier) == '.NETFramework'" />
     <None Update="FluentDate\InDate.Months.tt">
       <LastGenOutput>InDate.Months.cs</LastGenOutput>
       <Generator>TextTemplatingFileGenerator</Generator>
@@ -48,4 +52,4 @@
   <ItemGroup>
     <Service Include="{508349b6-6b84-4df5-91f0-309beebad82d}" />
   </ItemGroup>
-</Project>
\ No newline at end of file
+</Project>