Index: Src/GoogleApis.Authentication.OAuth2.Tests/packages.config
===================================================================
--- a/Src/GoogleApis.Authentication.OAuth2.Tests/packages.config
+++ b/Src/GoogleApis.Authentication.OAuth2.Tests/packages.config
@@ -1,5 +1,9 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
+  <package id="Microsoft.Bcl" version="1.0.19" targetFramework="net40" />
+  <package id="Microsoft.Bcl.Async" version="1.0.16" targetFramework="net40" />
+  <package id="Microsoft.Bcl.Build" version="1.0.8" targetFramework="net40" />
+  <package id="Microsoft.Net.Http" version="2.1.10" targetFramework="net40" />
   <package id="Newtonsoft.Json" version="5.0.5" targetFramework="net40" />
   <package id="NUnit" version="2.6.2" targetFramework="net40" />
 </packages>
\ No newline at end of file