diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index d99f5b9aca..9fde48f524 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -121,10 +121,6 @@
       <Uri>https://github.com/dotnet/extensions</Uri>
       <Sha>03c40031d618f923aa88da125cb078aabde9ebb1</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.Extensions.DiagnosticAdapter" Version="5.0.0-preview.4.20201.2" CoherentParentDependency="Microsoft.AspNetCore.Razor.Language">
-      <Uri>https://github.com/dotnet/extensions</Uri>
-      <Sha>03c40031d618f923aa88da125cb078aabde9ebb1</Sha>
-    </Dependency>
     <Dependency Name="Microsoft.Extensions.FileProviders.Abstractions" Version="5.0.0-preview.4.20201.2" CoherentParentDependency="Microsoft.AspNetCore.Razor.Language">
       <Uri>https://github.com/dotnet/extensions</Uri>
       <Sha>03c40031d618f923aa88da125cb078aabde9ebb1</Sha>
diff --git a/eng/Versions.props b/eng/Versions.props
index 3b23034dfb..716c86ea87 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -112,7 +112,6 @@
     <MicrosoftExtensionsConfigurationXmlPackageVersion>5.0.0-preview.4.20201.2</MicrosoftExtensionsConfigurationXmlPackageVersion>
     <MicrosoftExtensionsDependencyInjectionAbstractionsPackageVersion>5.0.0-preview.4.20201.2</MicrosoftExtensionsDependencyInjectionAbstractionsPackageVersion>
     <MicrosoftExtensionsDependencyInjectionPackageVersion>5.0.0-preview.4.20201.2</MicrosoftExtensionsDependencyInjectionPackageVersion>
-    <MicrosoftExtensionsDiagnosticAdapterPackageVersion>5.0.0-preview.4.20201.2</MicrosoftExtensionsDiagnosticAdapterPackageVersion>
     <MicrosoftExtensionsFileProvidersAbstractionsPackageVersion>5.0.0-preview.4.20201.2</MicrosoftExtensionsFileProvidersAbstractionsPackageVersion>
     <MicrosoftExtensionsFileProvidersCompositePackageVersion>5.0.0-preview.4.20201.2</MicrosoftExtensionsFileProvidersCompositePackageVersion>
     <MicrosoftExtensionsFileProvidersPhysicalPackageVersion>5.0.0-preview.4.20201.2</MicrosoftExtensionsFileProvidersPhysicalPackageVersion>
@@ -167,8 +166,9 @@
   </PropertyGroup>
   <PropertyGroup Label="Manual">
     <!-- Analyzer packages pinned temporarily until migrated/deprecated -->
-    <InternalAspNetCoreAnalyzersPackageVersion>5.0.0-preview.4.20201.1</InternalAspNetCoreAnalyzersPackageVersion>
-    <MicrosoftAspNetCoreAnalyzerTestingPackageVersion>5.0.0-preview.4.20201.1</MicrosoftAspNetCoreAnalyzerTestingPackageVersion>
+    <InternalAspNetCoreAnalyzersPackageVersion>5.0.0-preview.4.20180.4</InternalAspNetCoreAnalyzersPackageVersion>
+    <MicrosoftAspNetCoreAnalyzerTestingPackageVersion>5.0.0-preview.4.20180.4</MicrosoftAspNetCoreAnalyzerTestingPackageVersion>
+    <MicrosoftExtensionsDiagnosticAdapterPackageVersion>5.0.0-preview.4.20180.4</MicrosoftExtensionsDiagnosticAdapterPackageVersion>
     <!-- Build tool dependencies -->
     <InternalAspNetCoreBuildTasksPackageVersion>3.0.0-build-20190530.3</InternalAspNetCoreBuildTasksPackageVersion>
     <MicrosoftSymbolUploaderBuildTaskPackageVersion>1.0.0-beta-64023-03</MicrosoftSymbolUploaderBuildTaskPackageVersion>