diff --git a/eng/Versions.props b/eng/Versions.props
index bf4b2e05fb8383..7826e9dbecbeeb 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -136,7 +136,7 @@
     <runtimenativeSystemIOPortsVersion>10.0.0-alpha.1.24504.10</runtimenativeSystemIOPortsVersion>
     <!-- Keep toolset versions in sync with dotnet/msbuild and dotnet/sdk -->
     <SystemCollectionsImmutableToolsetVersion>8.0.0</SystemCollectionsImmutableToolsetVersion>
-    <SystemTextJsonToolsetVersion>8.0.4</SystemTextJsonToolsetVersion>
+    <SystemTextJsonToolsetVersion>8.0.5</SystemTextJsonToolsetVersion>
     <SystemReflectionMetadataToolsetVersion>8.0.0</SystemReflectionMetadataToolsetVersion>
     <SystemReflectionMetadataLoadContextToolsetVersion>8.0.0</SystemReflectionMetadataLoadContextToolsetVersion>
     <!-- Runtime-Assets dependencies -->
diff --git a/src/libraries/Microsoft.Extensions.DependencyInjection/tests/DI.External.Tests/Microsoft.Extensions.DependencyInjection.ExternalContainers.Tests.csproj b/src/libraries/Microsoft.Extensions.DependencyInjection/tests/DI.External.Tests/Microsoft.Extensions.DependencyInjection.ExternalContainers.Tests.csproj
index 4ca8c97b32c5bc..4e2d54ceca8445 100644
--- a/src/libraries/Microsoft.Extensions.DependencyInjection/tests/DI.External.Tests/Microsoft.Extensions.DependencyInjection.ExternalContainers.Tests.csproj
+++ b/src/libraries/Microsoft.Extensions.DependencyInjection/tests/DI.External.Tests/Microsoft.Extensions.DependencyInjection.ExternalContainers.Tests.csproj
@@ -23,6 +23,7 @@
     <PackageReference Include="LightInject.Microsoft.DependencyInjection" Version="3.7.1" />
     <PackageReference Include="Grace.DependencyInjection.Extensions" Version="7.1.0" />
     <PackageReference Include="Stashbox.Extensions.Dependencyinjection" Version="4.2.3" />
+    <PackageReference Include="System.Text.Json" Version="$(SystemTextJsonToolsetVersion)" />
   </ItemGroup>
 
   <!-- These packages don't support .NETFramework -->
diff --git a/src/mono/wasm/Wasm.Build.Tests/Wasm.Build.Tests.csproj b/src/mono/wasm/Wasm.Build.Tests/Wasm.Build.Tests.csproj
index 221ef09bfd1dd2..9a24ca0dac83bd 100644
--- a/src/mono/wasm/Wasm.Build.Tests/Wasm.Build.Tests.csproj
+++ b/src/mono/wasm/Wasm.Build.Tests/Wasm.Build.Tests.csproj
@@ -48,6 +48,7 @@
   <ItemGroup>
     <PackageReference Include="Microsoft.Playwright" Version="1.47.0" />
     <PackageReference Include="MSBuild.StructuredLogger" Version="2.2.350" />
+    <PackageReference Include="System.Text.Json" Version="$(SystemTextJsonToolsetVersion)" />
     <ProjectReference Include="$(RepoRoot)src\tasks\Microsoft.NET.Sdk.WebAssembly.Pack.Tasks\Microsoft.NET.Sdk.WebAssembly.Pack.Tasks.csproj" />
     <Compile Include="$(BrowserProjectRoot)debugger\DebuggerTestSuite\BrowserLocator.cs" />