diff --git a/build/dependencies.props b/build/dependencies.props
index e3c4edf15c..1facaba163 100644
--- a/build/dependencies.props
+++ b/build/dependencies.props
@@ -379,7 +379,7 @@
     <ExternalDependency Include="System.Text.Encodings.Web" Version="4.5.0-preview1-25922-03" Source="$(DotNetCoreFeed)" Mirror="true" />
     <ExternalDependency Include="System.Threading.AccessControl" Version="4.5.0-preview1-25922-03" Source="$(DotNetCoreFeed)" Mirror="true" />
     <ExternalDependency Include="System.Threading.Tasks.Dataflow" Version="4.9.0-preview1-25922-03" Source="$(DotNetCoreFeed)" Mirror="true" />
-    <ExternalDependency Include="System.Threading.Tasks.Extensions" Version="4.5.0-preview1-25922-03" Source="$(DotNetCoreFeed)" Mirror="true" />
+    <ExternalDependency Include="System.Threading.Tasks.Extensions" Version="4.5.0-preview2-25707-02" Source="$(DotNetCoreFeed)" Mirror="true" />
     <ExternalDependency Include="System.ValueTuple" Version="4.5.0-preview1-25922-03" Source="$(DotNetCoreFeed)" Mirror="true" />
     <ExternalDependency Include="WindowsAzure.Storage" Version="8.1.4" Source="$(DefaultNuGetFeed)" />
     <ExternalDependency Include="xunit.abstractions" Version="2.0.1" Source="$(DefaultNuGetFeed)" />