diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 029cc7f28..a18a6a84f 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -50,9 +50,9 @@
       <Uri>https://github.com/dotnet/toolset</Uri>
       <Sha>5e5eb72cc1f479a1d2352bc02275d05b014f63be</Sha>
     </Dependency>
-    <Dependency Name="NETStandard.Library" Version="2.1.0-prerelease.19126.1">
+    <Dependency Name="NETStandard.Library" Version="2.1.0-prerelease.19155.2">
       <Uri>https://github.com/dotnet/standard</Uri>
-      <Sha>f3add9198e40e017c064188481e978d09631eba3</Sha>
+      <Sha>e0b187594e09635394b2a0a6d35470e8d2b55f0c</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 61910bb53..6143caf64 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -37,7 +37,7 @@
     <MicrosoftNETCoreDotNetHostResolverPackageVersion>$(MicrosoftNETCoreAppPackageVersion)</MicrosoftNETCoreDotNetHostResolverPackageVersion>
   </PropertyGroup>
   <PropertyGroup>
-    <NETStandardLibraryPackageVersion>2.1.0-prerelease.19126.1</NETStandardLibraryPackageVersion>
+    <NETStandardLibraryPackageVersion>2.1.0-prerelease.19155.2</NETStandardLibraryPackageVersion>
     <!-- Use a different property name here, as NETStandardLibraryPackageVersion is also set by targets in the NETStandard.Library package,
          which ends up overriding the value set here. -->
     <NETSTandardTargetingPackVersion>$(NETStandardLibraryPackageVersion)</NETSTandardTargetingPackVersion>