diff --git a/build/dependencies.props b/build/dependencies.props
index 1fa0f88432..3caec25f6b 100644
--- a/build/dependencies.props
+++ b/build/dependencies.props
@@ -76,11 +76,11 @@
     <MicrosoftAzureKeyVaultPackageVersion>2.3.2</MicrosoftAzureKeyVaultPackageVersion>
     <MicrosoftAzureManagementFluentPackageVersion>1.1.3</MicrosoftAzureManagementFluentPackageVersion>
     <MicrosoftAzureServicesAppAuthenticationPackageVersion>1.0.1</MicrosoftAzureServicesAppAuthenticationPackageVersion>
-    <MicrosoftBuildFrameworkPackageVersion>15.6.82</MicrosoftBuildFrameworkPackageVersion>
-    <MicrosoftBuildPackageVersion>15.6.82</MicrosoftBuildPackageVersion>
-    <MicrosoftBuildRuntimePackageVersion>15.6.82</MicrosoftBuildRuntimePackageVersion>
-    <MicrosoftBuildTasksCorePackageVersion>15.6.82</MicrosoftBuildTasksCorePackageVersion>
-    <MicrosoftBuildUtilitiesCorePackageVersion>15.6.82</MicrosoftBuildUtilitiesCorePackageVersion>
+    <MicrosoftBuildFrameworkPackageVersion>15.8.166</MicrosoftBuildFrameworkPackageVersion>
+    <MicrosoftBuildPackageVersion>15.8.166</MicrosoftBuildPackageVersion>
+    <MicrosoftBuildRuntimePackageVersion>15.8.166</MicrosoftBuildRuntimePackageVersion>
+    <MicrosoftBuildTasksCorePackageVersion>15.8.166</MicrosoftBuildTasksCorePackageVersion>
+    <MicrosoftBuildUtilitiesCorePackageVersion>15.8.166</MicrosoftBuildUtilitiesCorePackageVersion>
     <MicrosoftCodeAnalysisCommonPackageVersion>2.8.0</MicrosoftCodeAnalysisCommonPackageVersion>
     <MicrosoftCodeAnalysisCSharpPackageVersion>2.8.0</MicrosoftCodeAnalysisCSharpPackageVersion>
     <MicrosoftCodeAnalysisCSharpWorkspacesPackageVersion>2.8.0</MicrosoftCodeAnalysisCSharpWorkspacesPackageVersion>
@@ -104,22 +104,24 @@
     <MicrosoftOwinSecurityCookiesPackageVersion>3.0.1</MicrosoftOwinSecurityCookiesPackageVersion>
     <MicrosoftOwinSecurityPackageVersion>3.0.1</MicrosoftOwinSecurityPackageVersion>
     <MicrosoftOwinTestingPackageVersion>3.0.1</MicrosoftOwinTestingPackageVersion>
-    <MicrosoftVisualStudioComponentModelHostPackageVersion>15.0.26606</MicrosoftVisualStudioComponentModelHostPackageVersion>
-    <MicrosoftVisualStudioEditorPackageVersion>15.6.161-preview</MicrosoftVisualStudioEditorPackageVersion>
-    <MicrosoftVisualStudioLanguagePackageVersion>15.8.519</MicrosoftVisualStudioLanguagePackageVersion>
-    <MicrosoftVisualStudioLanguageIntellisensePackageVersion>15.6.161-preview</MicrosoftVisualStudioLanguageIntellisensePackageVersion>
-    <MicrosoftVisualStudioOLEInteropPackageVersion>7.10.6070</MicrosoftVisualStudioOLEInteropPackageVersion>
-    <MicrosoftVisualStudioProjectSystemAnalyzersPackageVersion>15.3.224</MicrosoftVisualStudioProjectSystemAnalyzersPackageVersion>
+    <MicrosoftVisualStudioComponentModelHostPackageVersion>15.8.525</MicrosoftVisualStudioComponentModelHostPackageVersion>
+    <MicrosoftVisualStudioEditorPackageVersion>15.8.525</MicrosoftVisualStudioEditorPackageVersion>
+    <MicrosoftVisualStudioImageCatalogPackageVersion>15.8.28010</MicrosoftVisualStudioImageCatalogPackageVersion>
+    <MicrosoftVisualStudioLanguagePackageVersion>15.8.525</MicrosoftVisualStudioLanguagePackageVersion>
+    <MicrosoftVisualStudioLanguageIntellisensePackageVersion>15.8.525</MicrosoftVisualStudioLanguageIntellisensePackageVersion>
+    <MicrosoftVisualStudioOLEInteropPackageVersion>7.10.6071</MicrosoftVisualStudioOLEInteropPackageVersion>
+    <MicrosoftVisualStudioProjectSystemAnalyzersPackageVersion>15.8.243</MicrosoftVisualStudioProjectSystemAnalyzersPackageVersion>
     <MicrosoftVisualStudioProjectSystemManagedVSPackageVersion>2.0.6142705</MicrosoftVisualStudioProjectSystemManagedVSPackageVersion>
-    <MicrosoftVisualStudioProjectSystemSDKPackageVersion>15.3.224</MicrosoftVisualStudioProjectSystemSDKPackageVersion>
-    <MicrosoftVisualStudioShell150PackageVersion>15.0.26606</MicrosoftVisualStudioShell150PackageVersion>
-    <MicrosoftVisualStudioShellInterop100PackageVersion>10.0.30319</MicrosoftVisualStudioShellInterop100PackageVersion>
-    <MicrosoftVisualStudioShellInterop110PackageVersion>11.0.61030</MicrosoftVisualStudioShellInterop110PackageVersion>
-    <MicrosoftVisualStudioShellInterop120PackageVersion>12.0.30110</MicrosoftVisualStudioShellInterop120PackageVersion>
-    <MicrosoftVisualStudioShellInterop80PackageVersion>8.0.50727</MicrosoftVisualStudioShellInterop80PackageVersion>
-    <MicrosoftVisualStudioShellInterop90PackageVersion>9.0.30729</MicrosoftVisualStudioShellInterop90PackageVersion>
-    <MicrosoftVisualStudioShellInteropPackageVersion>7.10.6071</MicrosoftVisualStudioShellInteropPackageVersion>
-    <MicrosoftVisualStudioTextUIPackageVersion>15.6.161-preview</MicrosoftVisualStudioTextUIPackageVersion>
+    <MicrosoftVisualStudioProjectSystemSDKPackageVersion>15.8.243</MicrosoftVisualStudioProjectSystemSDKPackageVersion>
+    <MicrosoftVisualStudioShell150PackageVersion>15.8.28010</MicrosoftVisualStudioShell150PackageVersion>
+    <MicrosoftVisualStudioShellInterop100PackageVersion>10.0.30320</MicrosoftVisualStudioShellInterop100PackageVersion>
+    <MicrosoftVisualStudioShellInterop110PackageVersion>11.0.61031</MicrosoftVisualStudioShellInterop110PackageVersion>
+    <MicrosoftVisualStudioShellInterop120PackageVersion>12.0.30111</MicrosoftVisualStudioShellInterop120PackageVersion>
+    <MicrosoftVisualStudioShellInterop80PackageVersion>8.0.50728</MicrosoftVisualStudioShellInterop80PackageVersion>
+    <MicrosoftVisualStudioShellInterop90PackageVersion>9.0.30730</MicrosoftVisualStudioShellInterop90PackageVersion>
+    <MicrosoftVisualStudioShellInteropPackageVersion>7.10.6072</MicrosoftVisualStudioShellInteropPackageVersion>
+    <MicrosoftVisualStudioTextUIPackageVersion>15.8.525</MicrosoftVisualStudioTextUIPackageVersion>
+    <MicrosoftVisualStudioThreadingPackageVersion>15.8.168</MicrosoftVisualStudioThreadingPackageVersion>
     <MicrosoftWebAdministrationPackageVersion>11.1.0</MicrosoftWebAdministrationPackageVersion>
     <MicrosoftWebXdtPackageVersion>1.4.0</MicrosoftWebXdtPackageVersion>
     <mod_spatialitePackageVersion>4.3.0.1</mod_spatialitePackageVersion>
@@ -149,7 +151,7 @@
     <SQLitePCLRawCorePackageVersion>1.1.11</SQLitePCLRawCorePackageVersion>
     <StackExchangeRedisStrongNamePackageVersion>1.2.6</StackExchangeRedisStrongNamePackageVersion>
     <StackExchangeRedisPackageVersion>2.0.513</StackExchangeRedisPackageVersion>
-    <StreamJsonRpcPackageVersion>1.3.23</StreamJsonRpcPackageVersion>
+    <StreamJsonRpcPackageVersion>1.4.128</StreamJsonRpcPackageVersion>
     <StyleCopAnalyzersPackageVersion>1.0.0</StyleCopAnalyzersPackageVersion>
     <SystemIdentityModelTokensJwtPackageVersion>5.3.0</SystemIdentityModelTokensJwtPackageVersion>
     <SystemInteractiveAsyncPackageVersion>3.2.0</SystemInteractiveAsyncPackageVersion>
diff --git a/build/external-dependencies.props b/build/external-dependencies.props
index 2821c4e4b0..a980476968 100644
--- a/build/external-dependencies.props
+++ b/build/external-dependencies.props
@@ -89,6 +89,7 @@
     <ExternalDependency Include="Microsoft.Owin.Testing" Version="$(MicrosoftOwinTestingPackageVersion)" />
     <ExternalDependency Include="Microsoft.VisualStudio.ComponentModelHost" Version="$(MicrosoftVisualStudioComponentModelHostPackageVersion)" />
     <ExternalDependency Include="Microsoft.VisualStudio.Editor" Version="$(MicrosoftVisualStudioEditorPackageVersion)" />
+    <ExternalDependency Include="Microsoft.VisualStudio.ImageCatalog" Version="$(MicrosoftVisualStudioImageCatalogPackageVersion)" />
     <ExternalDependency Include="Microsoft.VisualStudio.Language" Version="$(MicrosoftVisualStudioLanguagePackageVersion)" />
     <ExternalDependency Include="Microsoft.VisualStudio.Language.Intellisense" Version="$(MicrosoftVisualStudioLanguageIntellisensePackageVersion)" />
     <ExternalDependency Include="Microsoft.VisualStudio.LanguageServices" Version="$(VSIX_MicrosoftVisualStudioLanguageServicesPackageVersion)" VariableName="VSIX_MicrosoftVisualStudioLanguageServicesPackageVersion" />
@@ -105,6 +106,7 @@
     <ExternalDependency Include="Microsoft.VisualStudio.Shell.Interop.8.0" Version="$(MicrosoftVisualStudioShellInterop80PackageVersion)" />
     <ExternalDependency Include="Microsoft.VisualStudio.Shell.Interop.9.0" Version="$(MicrosoftVisualStudioShellInterop90PackageVersion)" />
     <ExternalDependency Include="Microsoft.VisualStudio.Text.UI" Version="$(MicrosoftVisualStudioTextUIPackageVersion)" />
+    <ExternalDependency Include="Microsoft.VisualStudio.Threading" Version="$(MicrosoftVisualStudioThreadingPackageVersion)" />
     <ExternalDependency Include="Microsoft.Web.Xdt" Version="$(MicrosoftWebXdtPackageVersion)" />
     <ExternalDependency Include="Microsoft.Web.Administration" Version="$(MicrosoftWebAdministrationPackageVersion)" />
     <ExternalDependency Include="Microsoft.Win32.Registry" Version="$(MicrosoftWin32RegistryPackageVersion)" />