diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 1a463f29b69a..92aaec68a050 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -26,13 +26,13 @@
       <Uri>https://github.com/dotnet/core-setup</Uri>
       <Sha>73226d6f119c757813f47b0dc021e8700d525f71</Sha>
     </Dependency>
-    <Dependency Name="Microsoft.NETCore.Platforms" Version="3.0.0-preview6.19264.9">
+    <Dependency Name="Microsoft.NETCore.Platforms" Version="3.0.0-preview6.19265.6">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>a28176b5ec68b6da1472934fe9493790d1665cae</Sha>
+      <Sha>fb97a8b5043dc4f92e437e3b21fb33e7493f1b3a</Sha>
     </Dependency>
-    <Dependency Name="runtime.native.System.IO.Ports" Version="4.6.0-preview6.19264.9">
+    <Dependency Name="runtime.native.System.IO.Ports" Version="4.6.0-preview6.19265.6">
       <Uri>https://github.com/dotnet/corefx</Uri>
-      <Sha>a28176b5ec68b6da1472934fe9493790d1665cae</Sha>
+      <Sha>fb97a8b5043dc4f92e437e3b21fb33e7493f1b3a</Sha>
     </Dependency>
     <Dependency Name="Microsoft.DotNet.Arcade.Sdk" Version="1.0.0-beta.19264.13">
       <Uri>https://github.com/dotnet/arcade</Uri>
diff --git a/eng/Versions.props b/eng/Versions.props
index 20cca90a775d..e491f0dad6bd 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -43,8 +43,8 @@
     <MicrosoftNETCoreILAsmPackageVersion>3.0.0-preview6-27714-72</MicrosoftNETCoreILAsmPackageVersion>
     <MicrosoftNETCoreRuntimeCoreCLRPackageVersion>3.0.0-preview6-27714-72</MicrosoftNETCoreRuntimeCoreCLRPackageVersion>
     <!-- Corefx dependencies -->
-    <MicrosoftNETCorePlatformsPackageVersion>3.0.0-preview6.19264.9</MicrosoftNETCorePlatformsPackageVersion>
-    <runtimenativeSystemIOPortsPackageVersion>4.6.0-preview6.19264.9</runtimenativeSystemIOPortsPackageVersion>
+    <MicrosoftNETCorePlatformsPackageVersion>3.0.0-preview6.19265.6</MicrosoftNETCorePlatformsPackageVersion>
+    <runtimenativeSystemIOPortsPackageVersion>4.6.0-preview6.19265.6</runtimenativeSystemIOPortsPackageVersion>
     <!-- Standard dependencies -->
     <NETStandardLibraryPackageVersion>2.1.0-prerelease.19265.1</NETStandardLibraryPackageVersion>
     <!-- dotnet-optimization dependencies -->
@@ -64,7 +64,6 @@
     <PublishSymbolsPackage>Microsoft.SymbolUploader.Build.Task</PublishSymbolsPackage>
     <PublishSymbolsPackageVersion>1.0.0-beta-63604-05</PublishSymbolsPackageVersion>
   </PropertyGroup>
-
   <!-- Override isolated build dependency versions with versions from Repo API. -->
   <Import Project="$(DotNetPackageVersionPropsPath)" Condition="'$(DotNetPackageVersionPropsPath)' != ''" />
 </Project>