diff --git a/Src/Hypermedia.Json/Hypermedia.Json.csproj b/Src/Hypermedia.Json/Hypermedia.Json.csproj
index d97cd28..f32ecbb 100644
--- a/Src/Hypermedia.Json/Hypermedia.Json.csproj
+++ b/Src/Hypermedia.Json/Hypermedia.Json.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-      <TargetFramework>net6.0</TargetFramework>
+      <TargetFramework>netstandard1.4</TargetFramework>
       <PackageId>Hypermedia.Json</PackageId>
       <Authors>Cain O'Sullivan</Authors>
       <PackageProjectUrl>https://github.com/cosullivan/Hypermedia</PackageProjectUrl>
@@ -13,7 +13,6 @@
       <AssemblyVersion>3.3.2.0</AssemblyVersion>
       <FileVersion>3.3.2.0</FileVersion>
       <PackageRequireLicenseAcceptance>false</PackageRequireLicenseAcceptance>
-      <LangVersion>default</LangVersion>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
diff --git a/Src/Hypermedia.JsonApi.Client/Hypermedia.JsonApi.Client.csproj b/Src/Hypermedia.JsonApi.Client/Hypermedia.JsonApi.Client.csproj
index 9473015..8f40f51 100644
--- a/Src/Hypermedia.JsonApi.Client/Hypermedia.JsonApi.Client.csproj
+++ b/Src/Hypermedia.JsonApi.Client/Hypermedia.JsonApi.Client.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>netstandard1.4</TargetFramework>
     <Version>3.1.3</Version>
     <GeneratePackageOnBuild>false</GeneratePackageOnBuild>
     <Authors>Cain O'Sullivan</Authors>
@@ -11,7 +11,6 @@
     <Description>A JSONAPI compatible set of extensions for the HttpClient.</Description>
     <AssemblyVersion>3.1.3.0</AssemblyVersion>
     <FileVersion>3.1.3.0</FileVersion>
-    <LangVersion>default</LangVersion>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
diff --git a/Src/Hypermedia.JsonApi/Hypermedia.JsonApi.csproj b/Src/Hypermedia.JsonApi/Hypermedia.JsonApi.csproj
index d2e3db8..0f744fe 100644
--- a/Src/Hypermedia.JsonApi/Hypermedia.JsonApi.csproj
+++ b/Src/Hypermedia.JsonApi/Hypermedia.JsonApi.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6.0</TargetFramework>
+    <TargetFramework>netstandard1.4</TargetFramework>
     <GeneratePackageOnBuild>false</GeneratePackageOnBuild>
     <Authors>Cain O'Sullivan</Authors>
     <Company></Company>
@@ -11,7 +11,6 @@
     <Version>3.1.3</Version>
     <AssemblyVersion>3.1.3.0</AssemblyVersion>
     <FileVersion>3.1.2.0</FileVersion>
-    <LangVersion>default</LangVersion>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">
diff --git a/Src/Hypermedia/Hypermedia.csproj b/Src/Hypermedia/Hypermedia.csproj
index 712a187..b4b2933 100644
--- a/Src/Hypermedia/Hypermedia.csproj
+++ b/Src/Hypermedia/Hypermedia.csproj
@@ -1,6 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
+    <TargetFrameworks>netstandard1.4</TargetFrameworks>
     <PackageId>Hypermedia.Core</PackageId>
     <Authors>Cain O'Sullivan</Authors>
     <PackageProjectUrl>https://github.com/cosullivan/Hypermedia</PackageProjectUrl>
@@ -11,8 +12,6 @@
     <GeneratePackageOnBuild>false</GeneratePackageOnBuild>
     <AssemblyVersion>3.1.2.0</AssemblyVersion>
     <FileVersion>3.1.2.0</FileVersion>
-    <TargetFramework>net6.0</TargetFramework>
-    <LangVersion>default</LangVersion>
   </PropertyGroup>
 
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|AnyCPU'">