diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 781ab610399e..8c105d0a8f35 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -38,9 +38,9 @@
       <Uri>https://github.com/dotnet/arcade</Uri>
       <Sha>fb62c6377a6bd163af2a7516260f064498942585</Sha>
     </Dependency>
-    <Dependency Name="NETStandard.Library" Version="2.1.0-prerelease.19280.1">
+    <Dependency Name="NETStandard.Library" Version="2.1.0-prerelease.19281.2">
       <Uri>https://github.com/dotnet/standard</Uri>
-      <Sha>2c94a70248b2c4379ceffbade085f8d7eca4fee0</Sha>
+      <Sha>4d364ea4ecaf4d5da8d6f969f70db753dcc614b0</Sha>
     </Dependency>
     <Dependency Name="Microsoft.DotNet.Helix.Sdk" Version="2.0.0-beta.19279.5">
       <Uri>https://github.com/dotnet/arcade</Uri>
diff --git a/eng/Versions.props b/eng/Versions.props
index 72ee1ed3b4be..f49632c702e6 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -46,7 +46,7 @@
     <MicrosoftNETCorePlatformsPackageVersion>3.0.0-preview6.19279.8</MicrosoftNETCorePlatformsPackageVersion>
     <runtimenativeSystemIOPortsPackageVersion>4.6.0-preview6.19279.8</runtimenativeSystemIOPortsPackageVersion>
     <!-- Standard dependencies -->
-    <NETStandardLibraryPackageVersion>2.1.0-prerelease.19280.1</NETStandardLibraryPackageVersion>
+    <NETStandardLibraryPackageVersion>2.1.0-prerelease.19281.2</NETStandardLibraryPackageVersion>
     <!-- dotnet-optimization dependencies -->
     <optimizationwindows_ntx64IBCCoreFxPackageVersion>99.99.99-master-20190521.3</optimizationwindows_ntx64IBCCoreFxPackageVersion>
     <!-- sni -->