diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index ad0d92c3cea9..e7602a987204 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -19,9 +19,9 @@
       <Uri>https://github.com/dotnet/runtime</Uri>
       <Sha>b49ab01db607606ddb2741615e7c06131847cbf8</Sha>
     </Dependency>
-    <Dependency Name="NuGet.Build.Tasks" Version="5.5.0-rtm.6422">
+    <Dependency Name="NuGet.Build.Tasks" Version="5.6.0-preview.1.6478">
       <Uri>https://github.com/NuGet/NuGet.Client</Uri>
-      <Sha>7bac015acc5b7e0161a058c8febc98abe2386d51</Sha>
+      <Sha>64f2febf7d1de8b0228eca5afed97a96c5a30bba</Sha>
     </Dependency>
   </ToolsetDependencies>
 </Dependencies>
diff --git a/eng/Versions.props b/eng/Versions.props
index e93a8ba4d221..35f43eaef96d 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -18,7 +18,7 @@
     <MicrosoftExtensionsDependencyModelVersion>2.1.0-preview2-26306-03</MicrosoftExtensionsDependencyModelVersion>
     <MicrosoftApplicationInsightsPackageVersion>2.0.0</MicrosoftApplicationInsightsPackageVersion>
     <NETStandardLibraryNETFrameworkVersion>2.0.1-servicing-26011-01</NETStandardLibraryNETFrameworkVersion>
-    <NuGetBuildTasksPackageVersion>5.5.0-rtm.6422</NuGetBuildTasksPackageVersion>
+    <NuGetBuildTasksPackageVersion>5.6.0-preview.1.6478</NuGetBuildTasksPackageVersion>
     <NuGetPackagingVersion>$(NuGetBuildTasksPackageVersion)</NuGetPackagingVersion>
     <NuGetProjectModelVersion>$(NuGetBuildTasksPackageVersion)</NuGetProjectModelVersion>
     <PlatformAbstractionsVersion>2.0.0</PlatformAbstractionsVersion>