diff --git a/src/Avalara.AvaTax.RestClient.csproj b/src/Avalara.AvaTax.RestClient.csproj
index e2dac12..8a8c95c 100644
--- a/src/Avalara.AvaTax.RestClient.csproj
+++ b/src/Avalara.AvaTax.RestClient.csproj
@@ -101,11 +101,11 @@
 		</Compile>
 	</ItemGroup>
 	<ItemGroup Condition="'$(TargetFramework)' == 'netstandard1.6'">
-		<PackageReference Include="Newtonsoft.Json" Version="12.0.1" />
+		<PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
 		<PackageReference Include="System.Net.Http" Version="4.3.2" />
 	</ItemGroup>
 	<ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0'">
-		<PackageReference Include="Newtonsoft.Json" Version="12.0.1" />
+		<PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
 		<PackageReference Include="System.Net.Http" Version="4.3.2" />
 	</ItemGroup>
 	<ItemGroup>
diff --git a/src/Avalara.AvaTax.RestClient.nuspec b/src/Avalara.AvaTax.RestClient.nuspec
index 7cb0d81..a14cf5e 100644
--- a/src/Avalara.AvaTax.RestClient.nuspec
+++ b/src/Avalara.AvaTax.RestClient.nuspec
@@ -30,12 +30,12 @@
             </group>
             <group targetFramework=".NETStandard1.6">
                 <dependency id="NETStandard.Library" version="1.6.1" />
-                <dependency id="Newtonsoft.Json" version="12.0.1" />
+                <dependency id="Newtonsoft.Json" version="13.0.1" />
                 <dependency id="System.Net.Http" version="4.3.2" />
             </group>
             <group targetFramework=".NETStandard2.0">
               <dependency id="NETStandard.Library" version="2.0.0" />
-              <dependency id="Newtonsoft.Json" version="12.0.1" />
+              <dependency id="Newtonsoft.Json" version="13.0.1" />
               <dependency id="System.Net.Http" version="4.3.2" />
             </group>
         </dependencies>
diff --git a/tests/Avalara.AvaTax.RestClient.Test.csproj b/tests/Avalara.AvaTax.RestClient.Test.csproj
index 6574ed6..1864a8a 100644
--- a/tests/Avalara.AvaTax.RestClient.Test.csproj
+++ b/tests/Avalara.AvaTax.RestClient.Test.csproj
@@ -1,88 +1,88 @@
-<Project Sdk="Microsoft.NET.Sdk">
-	<PropertyGroup>
-		<TargetFrameworks>net451;net45;net461;net472;netcoreapp2.2;netcoreapp3.1</TargetFrameworks>
-		<GenerateAssemblyInfo>false</GenerateAssemblyInfo>
-	</PropertyGroup>
-	<PropertyGroup Condition="'$(TargetFramework)' == 'net451'">
-	</PropertyGroup>
-	<PropertyGroup Condition="'$(TargetFramework)' == 'net45'">
-	</PropertyGroup>
-	<PropertyGroup Condition="'$(TargetFramework)' == 'net461'">
-	</PropertyGroup>
-	<PropertyGroup Condition="'$(TargetFramework)' == 'net472'">
-	</PropertyGroup>
-	<PropertyGroup Condition="'$(TargetFramework)' == 'netcoreapp2.2'">
-	</PropertyGroup>
-	<PropertyGroup Condition="'$(TargetFramework)' == 'netcoreapp3.1'">
-	</PropertyGroup>
-	<ItemGroup>
-		<Compile Remove="**\*.*" />
-		<None Remove="**" />
-	</ItemGroup>
-	<ItemGroup Condition="'$(TargetFramework)' == 'net451'">
-		<PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
-		<PackageReference Include="Nunit" Version="3.13.3" />
-		<PackageReference Include="NUnit3TestAdapter" Version="4.2.1" />
-		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.2.0" />
-		<Reference Include="System.Net.Http" />
-		<Compile Include="net20\*.cs" />
-		<ProjectReference Include="..\src\Avalara.AvaTax.RestClient.csproj">
-		  <SetTargetFramework>TargetFramework=net20</SetTargetFramework>
-		</ProjectReference>
-	</ItemGroup>
-	<ItemGroup Condition="'$(TargetFramework)' == 'net45'">
-		<PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
-		<PackageReference Include="Nunit" Version="3.13.3" />
-		<PackageReference Include="NUnit3TestAdapter" Version="4.2.1" />
-		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.2.0" />
-		<Reference Include="System.Net.Http" />
-		<Compile Include="net45\*.cs" />
-		<ProjectReference Include="..\src\Avalara.AvaTax.RestClient.csproj">
-		  <SetTargetFramework>TargetFramework=net45</SetTargetFramework>
-		</ProjectReference>
-	</ItemGroup>
-	<ItemGroup Condition="'$(TargetFramework)' == 'net461'">
-		<PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
-		<PackageReference Include="Nunit" Version="3.13.3" />
-		<PackageReference Include="NUnit3TestAdapter" Version="4.2.1" />
-		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.2.0" />
-		<Reference Include="System.Net.Http" />
-		<Compile Include="net461\*.cs" />
-		<ProjectReference Include="..\src\Avalara.AvaTax.RestClient.csproj">
-		  <SetTargetFramework>TargetFramework=net461</SetTargetFramework>
-		</ProjectReference>
-	</ItemGroup>
-	<ItemGroup Condition="'$(TargetFramework)' == 'net472'">
-		<PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
-		<PackageReference Include="System.Net.Http" Version="4.3.2" />
-		<PackageReference Include="Nunit" Version="3.13.3" />
-		<PackageReference Include="NUnit3TestAdapter" Version="4.2.1" />
-		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.2.0" />
-		<Compile Include="net472\*.cs" />
-		<ProjectReference Include="..\src\Avalara.AvaTax.RestClient.csproj">
-		  <SetTargetFramework>TargetFramework=net472</SetTargetFramework>
-		</ProjectReference>
-	</ItemGroup>
-	<ItemGroup Condition="'$(TargetFramework)' == 'netcoreapp2.2'">
-		<PackageReference Include="Newtonsoft.Json" Version="12.0.1" />
-		<PackageReference Include="NUnit" Version="3.12.0" />
-		<PackageReference Include="NUnit3TestAdapter" Version="3.15.1" />
-		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.2.0" />
-		<PackageReference Include="System.Net.Http" Version="4.3.2" />
-		<Compile Include="netstandard\*.cs" />
-		<ProjectReference Include="..\src\Avalara.AvaTax.RestClient.csproj">
-		  <SetTargetFramework>TargetFramework=netstandard1.6</SetTargetFramework>
-		</ProjectReference>
-	</ItemGroup>
-	<ItemGroup Condition="'$(TargetFramework)' == 'netcoreapp3.1'">
-		<PackageReference Include="Newtonsoft.Json" Version="12.0.1" />
-		<PackageReference Include="Nunit" Version="3.13.3" />
-		<PackageReference Include="NUnit3TestAdapter" Version="3.15.1" />
-		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.2.0" />
-		<PackageReference Include="System.Net.Http" Version="4.3.2" />
-		<Compile Include="netstandard20\*.cs" />
-		<ProjectReference Include="..\src\Avalara.AvaTax.RestClient.csproj">
-		  <SetTargetFramework>TargetFramework=netstandard2.0</SetTargetFramework>
-		</ProjectReference>
-	</ItemGroup>
+<Project Sdk="Microsoft.NET.Sdk">
+	<PropertyGroup>
+		<TargetFrameworks>net451;net45;net461;net472;netcoreapp2.2;netcoreapp3.1</TargetFrameworks>
+		<GenerateAssemblyInfo>false</GenerateAssemblyInfo>
+	</PropertyGroup>
+	<PropertyGroup Condition="'$(TargetFramework)' == 'net451'">
+	</PropertyGroup>
+	<PropertyGroup Condition="'$(TargetFramework)' == 'net45'">
+	</PropertyGroup>
+	<PropertyGroup Condition="'$(TargetFramework)' == 'net461'">
+	</PropertyGroup>
+	<PropertyGroup Condition="'$(TargetFramework)' == 'net472'">
+	</PropertyGroup>
+	<PropertyGroup Condition="'$(TargetFramework)' == 'netcoreapp2.2'">
+	</PropertyGroup>
+	<PropertyGroup Condition="'$(TargetFramework)' == 'netcoreapp3.1'">
+	</PropertyGroup>
+	<ItemGroup>
+		<Compile Remove="**\*.*" />
+		<None Remove="**" />
+	</ItemGroup>
+	<ItemGroup Condition="'$(TargetFramework)' == 'net451'">
+		<PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
+		<PackageReference Include="Nunit" Version="3.13.3" />
+		<PackageReference Include="NUnit3TestAdapter" Version="4.2.1" />
+		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.2.0" />
+		<Reference Include="System.Net.Http" />
+		<Compile Include="net20\*.cs" />
+		<ProjectReference Include="..\src\Avalara.AvaTax.RestClient.csproj">
+		  <SetTargetFramework>TargetFramework=net20</SetTargetFramework>
+		</ProjectReference>
+	</ItemGroup>
+	<ItemGroup Condition="'$(TargetFramework)' == 'net45'">
+		<PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
+		<PackageReference Include="Nunit" Version="3.13.3" />
+		<PackageReference Include="NUnit3TestAdapter" Version="4.2.1" />
+		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.2.0" />
+		<Reference Include="System.Net.Http" />
+		<Compile Include="net45\*.cs" />
+		<ProjectReference Include="..\src\Avalara.AvaTax.RestClient.csproj">
+		  <SetTargetFramework>TargetFramework=net45</SetTargetFramework>
+		</ProjectReference>
+	</ItemGroup>
+	<ItemGroup Condition="'$(TargetFramework)' == 'net461'">
+		<PackageReference Include="Newtonsoft.Json" Version="12.0.2" />
+		<PackageReference Include="Nunit" Version="3.13.3" />
+		<PackageReference Include="NUnit3TestAdapter" Version="4.2.1" />
+		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.2.0" />
+		<Reference Include="System.Net.Http" />
+		<Compile Include="net461\*.cs" />
+		<ProjectReference Include="..\src\Avalara.AvaTax.RestClient.csproj">
+		  <SetTargetFramework>TargetFramework=net461</SetTargetFramework>
+		</ProjectReference>
+	</ItemGroup>
+	<ItemGroup Condition="'$(TargetFramework)' == 'net472'">
+		<PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
+		<PackageReference Include="System.Net.Http" Version="4.3.2" />
+		<PackageReference Include="Nunit" Version="3.13.3" />
+		<PackageReference Include="NUnit3TestAdapter" Version="4.2.1" />
+		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.2.0" />
+		<Compile Include="net472\*.cs" />
+		<ProjectReference Include="..\src\Avalara.AvaTax.RestClient.csproj">
+		  <SetTargetFramework>TargetFramework=net472</SetTargetFramework>
+		</ProjectReference>
+	</ItemGroup>
+	<ItemGroup Condition="'$(TargetFramework)' == 'netcoreapp2.2'">
+		<PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
+		<PackageReference Include="NUnit" Version="3.12.0" />
+		<PackageReference Include="NUnit3TestAdapter" Version="3.15.1" />
+		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.2.0" />
+		<PackageReference Include="System.Net.Http" Version="4.3.2" />
+		<Compile Include="netstandard\*.cs" />
+		<ProjectReference Include="..\src\Avalara.AvaTax.RestClient.csproj">
+		  <SetTargetFramework>TargetFramework=netstandard1.6</SetTargetFramework>
+		</ProjectReference>
+	</ItemGroup>
+	<ItemGroup Condition="'$(TargetFramework)' == 'netcoreapp3.1'">
+		<PackageReference Include="Newtonsoft.Json" Version="13.0.1" />
+		<PackageReference Include="Nunit" Version="3.13.3" />
+		<PackageReference Include="NUnit3TestAdapter" Version="3.15.1" />
+		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.2.0" />
+		<PackageReference Include="System.Net.Http" Version="4.3.2" />
+		<Compile Include="netstandard20\*.cs" />
+		<ProjectReference Include="..\src\Avalara.AvaTax.RestClient.csproj">
+		  <SetTargetFramework>TargetFramework=netstandard2.0</SetTargetFramework>
+		</ProjectReference>
+	</ItemGroup>
 </Project>
\ No newline at end of file