diff --git a/test/RestSharp.InteractiveTests/RestSharp.InteractiveTests.csproj b/test/RestSharp.InteractiveTests/RestSharp.InteractiveTests.csproj
index c25f980cf..d86d135bf 100644
--- a/test/RestSharp.InteractiveTests/RestSharp.InteractiveTests.csproj
+++ b/test/RestSharp.InteractiveTests/RestSharp.InteractiveTests.csproj
@@ -1,11 +1,19 @@
-<Project Sdk="Microsoft.NET.Sdk">
+<Project Sdk="Microsoft.NET.Sdk">
     <PropertyGroup>
         <OutputType>Exe</OutputType>
         <IsTestProject>false</IsTestProject>
         <TargetFramework>net6</TargetFramework>
     </PropertyGroup>
-    <ItemGroup>
+  <ItemGroup Condition="'$(TargetFramework)' == 'net472'">
+    <Reference Include="System.Net.Http" />
+    <Reference Include="System.Web" />
+    <PackageReference Include="Nullable" Version="1.3.1" PrivateAssets="All" />
+  </ItemGroup>
+  <ItemGroup>
         <ProjectReference Include="$(RepoRoot)\src\RestSharp\RestSharp.csproj" />
         <ProjectReference Include="..\RestSharp.Tests.Shared\RestSharp.Tests.Shared.csproj" />
     </ItemGroup>
+  <ItemGroup>
+    <PackageReference Update="xunit" Version="2.6.0" />
+  </ItemGroup>
 </Project>
diff --git a/test/RestSharp.Tests.Integrated/RestSharp.Tests.Integrated.csproj b/test/RestSharp.Tests.Integrated/RestSharp.Tests.Integrated.csproj
index cd511eb9b..a4058ba25 100644
--- a/test/RestSharp.Tests.Integrated/RestSharp.Tests.Integrated.csproj
+++ b/test/RestSharp.Tests.Integrated/RestSharp.Tests.Integrated.csproj
@@ -20,6 +20,9 @@
         <PackageReference Include="Microsoft.AspNetCore.TestHost" Version="6.0.21" />
         <PackageReference Include="Polly" Version="7.2.4" />
         <PackageReference Include="Xunit.Extensions.Logging" Version="1.1.0" />
+        <PackageReference Update="Microsoft.NET.Test.Sdk" Version="17.7.2" />
+        <PackageReference Update="xunit" Version="2.6.0" />
+        <PackageReference Update="xunit.runner.visualstudio" Version="2.5.3" />
     </ItemGroup>
     <ItemGroup>
         <None Update="xunit.runner.json" CopyToOutputDirectory="PreserveNewest" />
diff --git a/test/RestSharp.Tests.Serializers.Csv/RestSharp.Tests.Serializers.Csv.csproj b/test/RestSharp.Tests.Serializers.Csv/RestSharp.Tests.Serializers.Csv.csproj
index 4477eea34..ebe55a837 100644
--- a/test/RestSharp.Tests.Serializers.Csv/RestSharp.Tests.Serializers.Csv.csproj
+++ b/test/RestSharp.Tests.Serializers.Csv/RestSharp.Tests.Serializers.Csv.csproj
@@ -1,6 +1,11 @@
 <Project Sdk="Microsoft.NET.Sdk">
     <ItemGroup>
-        <ProjectReference Include="$(RepoRoot)\src\RestSharp.Serializers.CsvHelper\RestSharp.Serializers.CsvHelper.csproj"/>
-        <ProjectReference Include="..\RestSharp.Tests.Shared\RestSharp.Tests.Shared.csproj"/>
+        <ProjectReference Include="$(RepoRoot)\src\RestSharp.Serializers.CsvHelper\RestSharp.Serializers.CsvHelper.csproj" />
+        <ProjectReference Include="..\RestSharp.Tests.Shared\RestSharp.Tests.Shared.csproj" />
+    </ItemGroup>
+    <ItemGroup>
+      <PackageReference Update="Microsoft.NET.Test.Sdk" Version="17.7.2" />
+      <PackageReference Update="xunit" Version="2.6.0" />
+      <PackageReference Update="xunit.runner.visualstudio" Version="2.5.3" />
     </ItemGroup>
 </Project>
diff --git a/test/RestSharp.Tests.Serializers.Json/RestSharp.Tests.Serializers.Json.csproj b/test/RestSharp.Tests.Serializers.Json/RestSharp.Tests.Serializers.Json.csproj
index a7703166c..eac6a444d 100644
--- a/test/RestSharp.Tests.Serializers.Json/RestSharp.Tests.Serializers.Json.csproj
+++ b/test/RestSharp.Tests.Serializers.Json/RestSharp.Tests.Serializers.Json.csproj
@@ -15,4 +15,9 @@
         <PackageReference Include="rest-mock-core" Version="0.7.12" />
         <Compile Include="NewtonsoftJson\IntegratedTests.cs" />
     </ItemGroup>
+    <ItemGroup>
+      <PackageReference Update="Microsoft.NET.Test.Sdk" Version="17.7.2" />
+      <PackageReference Update="xunit" Version="2.6.0" />
+      <PackageReference Update="xunit.runner.visualstudio" Version="2.5.3" />
+    </ItemGroup>
 </Project>
diff --git a/test/RestSharp.Tests.Serializers.Xml/RestSharp.Tests.Serializers.Xml.csproj b/test/RestSharp.Tests.Serializers.Xml/RestSharp.Tests.Serializers.Xml.csproj
index 10c42ccc4..5a6518bd9 100644
--- a/test/RestSharp.Tests.Serializers.Xml/RestSharp.Tests.Serializers.Xml.csproj
+++ b/test/RestSharp.Tests.Serializers.Xml/RestSharp.Tests.Serializers.Xml.csproj
@@ -23,5 +23,10 @@
         <None Update="SampleData\xmllists.xml" CopyToOutputDirectory="PreserveNewest" />
         <None Update="SampleData\restsharp.nuspec" CopyToOutputDirectory="PreserveNewest" />
     </ItemGroup>
+    <ItemGroup>
+      <PackageReference Update="Microsoft.NET.Test.Sdk" Version="17.7.2" />
+      <PackageReference Update="xunit" Version="2.6.0" />
+      <PackageReference Update="xunit.runner.visualstudio" Version="2.5.3" />
+    </ItemGroup>
 
 </Project>
diff --git a/test/RestSharp.Tests.Shared/RestSharp.Tests.Shared.csproj b/test/RestSharp.Tests.Shared/RestSharp.Tests.Shared.csproj
index 274f12fb9..e15de7026 100644
--- a/test/RestSharp.Tests.Shared/RestSharp.Tests.Shared.csproj
+++ b/test/RestSharp.Tests.Shared/RestSharp.Tests.Shared.csproj
@@ -2,4 +2,7 @@
     <PropertyGroup>
         <IsTestProject>false</IsTestProject>
     </PropertyGroup>
+    <ItemGroup>
+      <PackageReference Update="xunit" Version="2.6.0" />
+    </ItemGroup>
 </Project>
diff --git a/test/RestSharp.Tests/RestSharp.Tests.csproj b/test/RestSharp.Tests/RestSharp.Tests.csproj
index 37251b528..929f18c26 100644
--- a/test/RestSharp.Tests/RestSharp.Tests.csproj
+++ b/test/RestSharp.Tests/RestSharp.Tests.csproj
@@ -4,10 +4,13 @@
     <PackageReference Include="RichardSzalay.MockHttp" Version="6.0.0" />
     <PackageReference Include="System.Net.Http.Json" Version="7.0.1" />
   </ItemGroup>
+    <PropertyGroup>
+        <IsTestProject>true</IsTestProject>
+    </PropertyGroup>
   <ItemGroup>
     <ProjectReference Include="$(RepoRoot)\src\RestSharp\RestSharp.csproj" />
   </ItemGroup>
-  <ItemGroup Condition="'$(TargetFramework)' == 'net471'">
+  <ItemGroup Condition="'$(TargetFramework)' == 'net472'">
     <Reference Include="System.Net.Http" />
     <Reference Include="System.Web" />
     <PackageReference Include="Nullable" Version="1.3.1" PrivateAssets="All" />
@@ -32,4 +35,9 @@
     <None Update="SampleData\timespans.json" CopyToOutputDirectory="PreserveNewest" />
     <None Update="SampleData\underscore_prefix.json" CopyToOutputDirectory="PreserveNewest" />
   </ItemGroup>
+  <ItemGroup>
+    <PackageReference Update="Microsoft.NET.Test.Sdk" Version="17.7.2" />
+    <PackageReference Update="xunit" Version="2.6.0" />
+    <PackageReference Update="xunit.runner.visualstudio" Version="2.5.3" />
+  </ItemGroup>
 </Project>
\ No newline at end of file