diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 8268d32a186..68ce7680dc9 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -1,49 +1,49 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Dependencies>
   <ProductDependencies>
-    <Dependency Name="Microsoft.Win32.Registry" Version="4.6.0-preview4.19118.1">
+    <Dependency Name="Microsoft.Win32.Registry" Version="4.6.0-preview4.19118.6">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>638ddfb1c6e625e5a702600c8d42bc6e254e2eb5</Sha>
+      <Sha>dca39727b02ceb4413d0fde11467965099ab4a2f</Sha>
     </Dependency>
-    <Dependency Name="System.Configuration.ConfigurationManager" Version="4.6.0-preview4.19118.1">
+    <Dependency Name="System.Configuration.ConfigurationManager" Version="4.6.0-preview4.19118.6">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>638ddfb1c6e625e5a702600c8d42bc6e254e2eb5</Sha>
+      <Sha>dca39727b02ceb4413d0fde11467965099ab4a2f</Sha>
     </Dependency>
-    <Dependency Name="System.Diagnostics.EventLog" Version="4.6.0-preview4.19118.1">
+    <Dependency Name="System.Diagnostics.EventLog" Version="4.6.0-preview4.19118.6">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>638ddfb1c6e625e5a702600c8d42bc6e254e2eb5</Sha>
+      <Sha>dca39727b02ceb4413d0fde11467965099ab4a2f</Sha>
     </Dependency>
-    <Dependency Name="System.Reflection.Emit" Version="4.6.0-preview4.19118.1">
+    <Dependency Name="System.Reflection.Emit" Version="4.6.0-preview4.19118.6">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>638ddfb1c6e625e5a702600c8d42bc6e254e2eb5</Sha>
+      <Sha>dca39727b02ceb4413d0fde11467965099ab4a2f</Sha>
     </Dependency>
-    <Dependency Name="System.Reflection.TypeExtensions" Version="4.6.0-preview4.19118.1">
+    <Dependency Name="System.Reflection.TypeExtensions" Version="4.6.0-preview4.19118.6">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>638ddfb1c6e625e5a702600c8d42bc6e254e2eb5</Sha>
+      <Sha>dca39727b02ceb4413d0fde11467965099ab4a2f</Sha>
     </Dependency>
-    <Dependency Name="System.Security.AccessControl" Version="4.6.0-preview4.19118.1">
+    <Dependency Name="System.Security.AccessControl" Version="4.6.0-preview4.19118.6">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>638ddfb1c6e625e5a702600c8d42bc6e254e2eb5</Sha>
+      <Sha>dca39727b02ceb4413d0fde11467965099ab4a2f</Sha>
     </Dependency>
-    <Dependency Name="System.Security.Cryptography.Xml" Version="4.6.0-preview4.19118.1">
+    <Dependency Name="System.Security.Cryptography.Xml" Version="4.6.0-preview4.19118.6">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>638ddfb1c6e625e5a702600c8d42bc6e254e2eb5</Sha>
+      <Sha>dca39727b02ceb4413d0fde11467965099ab4a2f</Sha>
     </Dependency>
-    <Dependency Name="System.Security.Permissions" Version="4.6.0-preview4.19118.1">
+    <Dependency Name="System.Security.Permissions" Version="4.6.0-preview4.19118.6">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>638ddfb1c6e625e5a702600c8d42bc6e254e2eb5</Sha>
+      <Sha>dca39727b02ceb4413d0fde11467965099ab4a2f</Sha>
     </Dependency>
-    <Dependency Name="System.Security.Principal.Windows" Version="4.6.0-preview4.19118.1">
+    <Dependency Name="System.Security.Principal.Windows" Version="4.6.0-preview4.19118.6">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>638ddfb1c6e625e5a702600c8d42bc6e254e2eb5</Sha>
+      <Sha>dca39727b02ceb4413d0fde11467965099ab4a2f</Sha>
     </Dependency>
-    <Dependency Name="System.Windows.Extensions" Version="4.6.0-preview4.19118.1">
+    <Dependency Name="System.Windows.Extensions" Version="4.6.0-preview4.19118.6">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>638ddfb1c6e625e5a702600c8d42bc6e254e2eb5</Sha>
+      <Sha>dca39727b02ceb4413d0fde11467965099ab4a2f</Sha>
     </Dependency>
-    <Dependency Name="System.CodeDom" Version="4.6.0-preview4.19118.1">
+    <Dependency Name="System.CodeDom" Version="4.6.0-preview4.19118.6">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>638ddfb1c6e625e5a702600c8d42bc6e254e2eb5</Sha>
+      <Sha>dca39727b02ceb4413d0fde11467965099ab4a2f</Sha>
     </Dependency>
   </ProductDependencies>
   <ToolsetDependencies>
diff --git a/eng/Versions.props b/eng/Versions.props
index 438ed994049..21f499389eb 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -8,17 +8,17 @@
   <!-- NuGet Package Versions -->
   <PropertyGroup>
     <!-- Packages that come from https://github.com/dotnet/corefx -->
-    <MicrosoftWin32RegistryPackageVersion>4.6.0-preview4.19118.1</MicrosoftWin32RegistryPackageVersion>
-    <SystemConfigurationConfigurationManagerPackageVersion>4.6.0-preview4.19118.1</SystemConfigurationConfigurationManagerPackageVersion>
-    <SystemDiagnosticsEventLogPackageVersion>4.6.0-preview4.19118.1</SystemDiagnosticsEventLogPackageVersion>
-    <SystemReflectionEmitPackageVersion>4.6.0-preview4.19118.1</SystemReflectionEmitPackageVersion>
-    <SystemReflectionTypeExtensionsPackageVersion>4.6.0-preview4.19118.1</SystemReflectionTypeExtensionsPackageVersion>
-    <SystemSecurityAccessControlPackageVersion>4.6.0-preview4.19118.1</SystemSecurityAccessControlPackageVersion>
-    <SystemSecurityCryptographyXmlPackageVersion>4.6.0-preview4.19118.1</SystemSecurityCryptographyXmlPackageVersion>
-    <SystemSecurityPermissionsPackageVersion>4.6.0-preview4.19118.1</SystemSecurityPermissionsPackageVersion>
-    <SystemSecurityPrincipalWindowsPackageVersion>4.6.0-preview4.19118.1</SystemSecurityPrincipalWindowsPackageVersion>
-    <SystemWindowsExtensionsPackageVersion>4.6.0-preview4.19118.1</SystemWindowsExtensionsPackageVersion>
-    <SystemCodeDomPackageVersion>4.6.0-preview4.19118.1</SystemCodeDomPackageVersion>
+    <MicrosoftWin32RegistryPackageVersion>4.6.0-preview4.19118.6</MicrosoftWin32RegistryPackageVersion>
+    <SystemConfigurationConfigurationManagerPackageVersion>4.6.0-preview4.19118.6</SystemConfigurationConfigurationManagerPackageVersion>
+    <SystemDiagnosticsEventLogPackageVersion>4.6.0-preview4.19118.6</SystemDiagnosticsEventLogPackageVersion>
+    <SystemReflectionEmitPackageVersion>4.6.0-preview4.19118.6</SystemReflectionEmitPackageVersion>
+    <SystemReflectionTypeExtensionsPackageVersion>4.6.0-preview4.19118.6</SystemReflectionTypeExtensionsPackageVersion>
+    <SystemSecurityAccessControlPackageVersion>4.6.0-preview4.19118.6</SystemSecurityAccessControlPackageVersion>
+    <SystemSecurityCryptographyXmlPackageVersion>4.6.0-preview4.19118.6</SystemSecurityCryptographyXmlPackageVersion>
+    <SystemSecurityPermissionsPackageVersion>4.6.0-preview4.19118.6</SystemSecurityPermissionsPackageVersion>
+    <SystemSecurityPrincipalWindowsPackageVersion>4.6.0-preview4.19118.6</SystemSecurityPrincipalWindowsPackageVersion>
+    <SystemWindowsExtensionsPackageVersion>4.6.0-preview4.19118.6</SystemWindowsExtensionsPackageVersion>
+    <SystemCodeDomPackageVersion>4.6.0-preview4.19118.6</SystemCodeDomPackageVersion>
     <!-- Packages that come from https://github.com/dotnet/corefxlab -->
     <SystemReflectionTypeLoaderPackageVersion>0.1.0-preview2-181205-2</SystemReflectionTypeLoaderPackageVersion>
     <!-- Maintain System.CodeDom PackageVersion at 4.4.0. See https://github.com/Microsoft/msbuild/issues/3627 -->