diff --git a/NuGet.Config b/NuGet.Config
index ea1efaebe..baa008de9 100644
--- a/NuGet.Config
+++ b/NuGet.Config
@@ -8,6 +8,5 @@
     <add key="roslyn" value="https://dotnet.myget.org/f/roslyn/api/v3/index.json" />
     <add key="xunit" value="https://www.myget.org/F/xunit/api/v3/index.json" />
     <add key="api.nuget.org" value="https://api.nuget.org/v3/index.json" />
-    <add key="mstest" value="https://dotnet.myget.org/F/vstest/auth/a08e2295-382f-4e78-8425-b96e2386e227/api/v3/index.json" />
   </packageSources>
 </configuration>