diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index a97da6057..c13257366 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -50,9 +50,9 @@
       <Uri>https://github.com/dotnet/toolset</Uri>
       <Sha>451276038744a1883f8a9f15206ecef734c0c21c</Sha>
     </Dependency>
-    <Dependency Name="NETStandard.Library" Version="2.1.0-prerelease.19168.1">
+    <Dependency Name="NETStandard.Library" Version="2.1.0-prerelease.19172.1">
       <Uri>https://github.com/dotnet/standard</Uri>
-      <Sha>fc4a92712cff169e451bc097b2dc57590fd5de36</Sha>
+      <Sha>27346e62d48fc1ed62a341b65b7cb4f28dc021c3</Sha>
     </Dependency>
     <Dependency Name="Microsoft.DotNet.MSBuildSdkResolver" Version="3.0.100-preview4.19111.1">
       <Uri>https://github.com/dotnet/cli</Uri>
diff --git a/eng/Versions.props b/eng/Versions.props
index 3af7254c5..643ed1c70 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -37,7 +37,7 @@
     <MicrosoftNETCoreDotNetHostResolverPackageVersion>$(MicrosoftNETCoreAppPackageVersion)</MicrosoftNETCoreDotNetHostResolverPackageVersion>
   </PropertyGroup>
   <PropertyGroup>
-    <NETStandardLibraryPackageVersion>2.1.0-prerelease.19168.1</NETStandardLibraryPackageVersion>
+    <NETStandardLibraryPackageVersion>2.1.0-prerelease.19172.1</NETStandardLibraryPackageVersion>
     <!-- Use a different property name here, as NETStandardLibraryPackageVersion is also set by targets in the NETStandard.Library package,
          which ends up overriding the value set here. -->
     <NETSTandardTargetingPackVersion>$(NETStandardLibraryPackageVersion)</NETSTandardTargetingPackVersion>