diff --git a/eng/Version.Details.xml b/eng/Version.Details.xml
index 753bb9872..abc30c8fd 100644
--- a/eng/Version.Details.xml
+++ b/eng/Version.Details.xml
@@ -13,9 +13,9 @@
https://github.com/dotnet/corefx
8321c729934c0f8be754953439b88e6e1c120c24
-
+
https://github.com/dotnet/standard
- 040f41f20972988aa34195e778b4170004ead695
+ 16f3d7537987f094cac266152a17e8ed6c4c440f
https://github.com/dotnet/coreclr
diff --git a/eng/Versions.props b/eng/Versions.props
index 669f15851..1008ef885 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -12,7 +12,7 @@
3.0.0-preview5.19208.1
2.0.0
- 2.1.0-prerelease.19207.1
+ 2.1.0-prerelease.19208.1
3.0.0-preview4-27604-73