diff --git a/test/OpenTelemetry.AutoInstrumentation.Bootstrapping.Tests/OpenTelemetry.AutoInstrumentation.Bootstrapping.Tests.csproj b/test/OpenTelemetry.AutoInstrumentation.Bootstrapping.Tests/OpenTelemetry.AutoInstrumentation.Bootstrapping.Tests.csproj
index c81437239..b7f31c5dc 100644
--- a/test/OpenTelemetry.AutoInstrumentation.Bootstrapping.Tests/OpenTelemetry.AutoInstrumentation.Bootstrapping.Tests.csproj
+++ b/test/OpenTelemetry.AutoInstrumentation.Bootstrapping.Tests/OpenTelemetry.AutoInstrumentation.Bootstrapping.Tests.csproj
@@ -4,4 +4,8 @@
     <ProjectReference Include="..\..\src\OpenTelemetry.AutoInstrumentation\OpenTelemetry.AutoInstrumentation.csproj" />
   </ItemGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Newtonsoft.Json" />
+  </ItemGroup>
+
 </Project>
diff --git a/test/OpenTelemetry.AutoInstrumentation.BuildTasks.Tests/OpenTelemetry.AutoInstrumentation.BuildTasks.Tests.csproj b/test/OpenTelemetry.AutoInstrumentation.BuildTasks.Tests/OpenTelemetry.AutoInstrumentation.BuildTasks.Tests.csproj
index bcdef8808..175905edd 100644
--- a/test/OpenTelemetry.AutoInstrumentation.BuildTasks.Tests/OpenTelemetry.AutoInstrumentation.BuildTasks.Tests.csproj
+++ b/test/OpenTelemetry.AutoInstrumentation.BuildTasks.Tests/OpenTelemetry.AutoInstrumentation.BuildTasks.Tests.csproj
@@ -7,6 +7,7 @@
   <ItemGroup>
     <!-- Packages referenced by the BuildTasks are not transferred to the test library so add them here so it can be used by the tests. -->
     <PackageReference Include="Microsoft.Build.Utilities.Core" />
+    <PackageReference Include="Newtonsoft.Json" />
     <PackageReference Include="NuGet.Versioning" />
   </ItemGroup>
 
diff --git a/test/OpenTelemetry.AutoInstrumentation.Loader.Tests/OpenTelemetry.AutoInstrumentation.Loader.Tests.csproj b/test/OpenTelemetry.AutoInstrumentation.Loader.Tests/OpenTelemetry.AutoInstrumentation.Loader.Tests.csproj
index fdddc49ca..7eefae99a 100644
--- a/test/OpenTelemetry.AutoInstrumentation.Loader.Tests/OpenTelemetry.AutoInstrumentation.Loader.Tests.csproj
+++ b/test/OpenTelemetry.AutoInstrumentation.Loader.Tests/OpenTelemetry.AutoInstrumentation.Loader.Tests.csproj
@@ -2,4 +2,7 @@
   <ItemGroup>
     <ProjectReference Include="..\..\src\OpenTelemetry.AutoInstrumentation.Loader\OpenTelemetry.AutoInstrumentation.Loader.csproj" />
   </ItemGroup>
+  <ItemGroup>
+    <PackageReference Include="Newtonsoft.Json" />
+  </ItemGroup>
 </Project>
diff --git a/test/OpenTelemetry.AutoInstrumentation.StartupHook.Tests/OpenTelemetry.AutoInstrumentation.StartupHook.Tests.csproj b/test/OpenTelemetry.AutoInstrumentation.StartupHook.Tests/OpenTelemetry.AutoInstrumentation.StartupHook.Tests.csproj
index 7cf6d5d9e..66356cf5d 100644
--- a/test/OpenTelemetry.AutoInstrumentation.StartupHook.Tests/OpenTelemetry.AutoInstrumentation.StartupHook.Tests.csproj
+++ b/test/OpenTelemetry.AutoInstrumentation.StartupHook.Tests/OpenTelemetry.AutoInstrumentation.StartupHook.Tests.csproj
@@ -9,4 +9,8 @@
     <ProjectReference Include="..\..\src\OpenTelemetry.AutoInstrumentation.StartupHook\OpenTelemetry.AutoInstrumentation.StartupHook.csproj" />
   </ItemGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Newtonsoft.Json" />
+  </ItemGroup>
+
 </Project>
diff --git a/test/OpenTelemetry.AutoInstrumentation.Tests/OpenTelemetry.AutoInstrumentation.Tests.csproj b/test/OpenTelemetry.AutoInstrumentation.Tests/OpenTelemetry.AutoInstrumentation.Tests.csproj
index 81478dfdb..19a12b4ba 100644
--- a/test/OpenTelemetry.AutoInstrumentation.Tests/OpenTelemetry.AutoInstrumentation.Tests.csproj
+++ b/test/OpenTelemetry.AutoInstrumentation.Tests/OpenTelemetry.AutoInstrumentation.Tests.csproj
@@ -1,6 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <ItemGroup>
+    <PackageReference Include="Newtonsoft.Json" />
     <PackageReference Include="Xunit.SkippableFact" />
   </ItemGroup>