diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 2e237019f3..05a40dda54 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -113,9 +113,9 @@
       <Uri>https://github.com/dotnet/corefx</Uri>
       <Sha>d341fd37dcb2c22e382adccdc06770cf8f160577</Sha>
     </Dependency>
-    <Dependency Name="NETStandard.Library" Version="2.1.0-prerelease.19421.6">
+    <Dependency Name="NETStandard.Library" Version="2.1.0-prerelease.19421.7">
       <Uri>https://github.com/dotnet/standard</Uri>
-      <Sha>1bb236a5181e03d3c1533e1129a4515d38dff97d</Sha>
+      <Sha>347650ff4f56069106b8c9dccd026f98e209fa83</Sha>
     </Dependency>
     <Dependency Name="Microsoft.NETCore.Runtime.CoreCLR" Version="3.0.0-preview9.19409.2">
       <Uri>https://github.com/dotnet/coreclr</Uri>
diff --git a/eng/Versions.props b/eng/Versions.props
index ccaebf3b13..059cd2da75 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -68,7 +68,7 @@
     <SystemThreadingAccessControlVersion>4.6.0-rc1.19420.10</SystemThreadingAccessControlVersion>
     <SystemWindowsExtensionsPackageVersion>4.6.0-rc1.19420.10</SystemWindowsExtensionsPackageVersion>
     <!-- standard -->
-    <NETStandardLibraryPackageVersion>2.1.0-prerelease.19421.6</NETStandardLibraryPackageVersion>
+    <NETStandardLibraryPackageVersion>2.1.0-prerelease.19421.7</NETStandardLibraryPackageVersion>
     <!-- coreclr -->
     <MicrosoftNETCoreRuntimeCoreCLRPackageVersion>3.0.0-preview9.19409.2</MicrosoftNETCoreRuntimeCoreCLRPackageVersion>
     <!-- winforms -->