diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index ca7786813..a2798afb6 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -46,9 +46,9 @@
       <Uri>https://github.com/dotnet/toolset</Uri>
       <Sha>26d5f37d1d795e7b560137a5124f5b7d5962de92</Sha>
     </Dependency>
-    <Dependency Name="NETStandard.Library" Version="2.1.0-prerelease.19281.3">
+    <Dependency Name="NETStandard.Library" Version="2.1.0-prerelease.19281.4">
       <Uri>https://github.com/dotnet/standard</Uri>
-      <Sha>c2a5a4db436b7fe74193baef2d64f20ef0406f7b</Sha>
+      <Sha>5d9fc34d19fe75089c293250f5f95dcd0f868385</Sha>
     </Dependency>
     <Dependency Name="Microsoft.NET.Sdk" Version="3.0.100-preview6.19281.2">
       <Uri>https://github.com/dotnet/sdk</Uri>