diff --git a/azure-pipelines-official.yml b/azure-pipelines-official.yml
index 5f681633869f5..464376831d29b 100644
--- a/azure-pipelines-official.yml
+++ b/azure-pipelines-official.yml
@@ -50,9 +50,9 @@ variables:
   # To retrieve OptProf data we need to authenticate to the VS drop storage.
   # Get access token with $dn-bot-devdiv-drop-rw-code-rw and dn-bot-dnceng-build-rw-code-rw from DotNet-VSTS-Infra-Access
   # Get $AccessToken-dotnet-build-bot-public-repo from DotNet-Versions-Publish
-  - group: DotNet-Versions-Publish
   - group: DotNet-VSTS-Infra-Access
   - group: DotNet-DevDiv-Insertion-Workflow-Variables
+  - group: AzureDevOps-Artifact-Feeds-Pats
   - name: _DevDivDropAccessToken
     value: $(dn-bot-devdiv-drop-rw-code-rw)
   - name: ArtifactServices.Drop.PAT
diff --git a/eng/Versions.props b/eng/Versions.props
index 7b9c7fd7f9bfe..7d83f6359f0b9 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -264,6 +264,7 @@
     <SystemTextEncodingExtensionsVersion>4.3.0</SystemTextEncodingExtensionsVersion>
     <!-- Note: When updating SystemTextJsonVersion ensure that the version is no higher than what is used by MSBuild. -->
     <SystemTextJsonVersion>7.0.3</SystemTextJsonVersion>
+    <SystemTextJsonFixedVersion>8.0.4</SystemTextJsonFixedVersion>
     <SystemThreadingChannelsVersion>7.0.0</SystemThreadingChannelsVersion>
     <SystemThreadingTasksDataflowVersion>7.0.0</SystemThreadingTasksDataflowVersion>
     <!-- We need System.ValueTuple assembly version at least 4.0.3.0 on net47 to make F5 work against Dev15 - see https://github.com/dotnet/roslyn/issues/29705 -->
diff --git a/src/Workspaces/Core/MSBuild.BuildHost/Microsoft.CodeAnalysis.Workspaces.MSBuild.BuildHost.csproj b/src/Workspaces/Core/MSBuild.BuildHost/Microsoft.CodeAnalysis.Workspaces.MSBuild.BuildHost.csproj
index fc94a6b184b34..5b5fab7ef343e 100644
--- a/src/Workspaces/Core/MSBuild.BuildHost/Microsoft.CodeAnalysis.Workspaces.MSBuild.BuildHost.csproj
+++ b/src/Workspaces/Core/MSBuild.BuildHost/Microsoft.CodeAnalysis.Workspaces.MSBuild.BuildHost.csproj
@@ -21,7 +21,7 @@
     <PackageReference Include="Microsoft.Build.Framework" Version="$(RefOnlyMicrosoftBuildFrameworkVersion)" ExcludeAssets="Runtime" />
     <PackageReference Include="Microsoft.Build.Tasks.Core" Version="$(RefOnlyMicrosoftBuildTasksCoreVersion)" ExcludeAssets="Runtime" PrivateAssets="All" />
     <PackageReference Include="Microsoft.Build.Locator" Version="$(MicrosoftBuildLocatorVersion)" PrivateAssets="All" />
-    <PackageReference Include="System.Text.Json" Version="$(SystemTextJsonVersion)" />
+    <PackageReference Include="System.Text.Json" Version="$(SystemTextJsonFixedVersion)" PrivateAssets="All" Condition="'$(DotnetBuildFromSource)' != 'true'"/>
     <PackageReference Include="StreamJsonRpc" Version="$(StreamJsonRpcVersion)" Condition="'$(DotNetBuildFromSource)' != 'true'" />
     <PackageReference Include="System.CommandLine" Version="$(SystemCommandLineVersion)" />
     <PackageReference Include="Microsoft.Extensions.Logging.Console" Version="$(MicrosoftExtensionsLoggingConsoleVersion)" />