diff --git a/submodules/octokit.graphql.net b/submodules/octokit.graphql.net
index 772de8c4e5..4d2b083bd8 160000
--- a/submodules/octokit.graphql.net
+++ b/submodules/octokit.graphql.net
@@ -1 +1 @@
-Subproject commit 772de8c4e539f4f85f40530f2868d3b7ea660879
+Subproject commit 4d2b083bd8eaeb05b7f089e4aedc9d0e0015b61d
diff --git a/test/GitHub.VisualStudio.UnitTests/GitHub.VisualStudio.UnitTests.csproj b/test/GitHub.VisualStudio.UnitTests/GitHub.VisualStudio.UnitTests.csproj
index 6f32bb2c82..233568c347 100644
--- a/test/GitHub.VisualStudio.UnitTests/GitHub.VisualStudio.UnitTests.csproj
+++ b/test/GitHub.VisualStudio.UnitTests/GitHub.VisualStudio.UnitTests.csproj
@@ -21,6 +21,7 @@
   <ItemGroup>
     <PackageReference Include="Codecov" Version="1.1.0" />
     <PackageReference Include="Madskristensen.VisualStudio.SDK" Version="14.3.75-pre" />
+    <PackageReference Include="NCrunch.Framework" Version="3.17.0" />
     <PackageReference Include="NSubstitute" Version="2.0.3" />
     <PackageReference Include="NUnit" version="3.9.0" />
     <PackageReference Include="OpenCover" Version="4.6.519" />
diff --git a/test/GitHub.VisualStudio.UnitTests/GitHubAssemblyTests.cs b/test/GitHub.VisualStudio.UnitTests/GitHubAssemblyTests.cs
index ac63165810..b95392cff7 100644
--- a/test/GitHub.VisualStudio.UnitTests/GitHubAssemblyTests.cs
+++ b/test/GitHub.VisualStudio.UnitTests/GitHubAssemblyTests.cs
@@ -1,5 +1,8 @@
-using System.IO;
+using System;
+using System.IO;
+using System.Linq;
 using System.Reflection;
+using NCrunch.Framework;
 using NUnit.Framework;
 
 public class GitHubAssemblyTests
@@ -15,8 +18,34 @@ public void GitHub_Assembly_Should_Not_Reference_DesignTime_Assembly(string asse
         }
     }
 
+    [Theory]
+    public void GitHub_Assembly_Should_Not_Reference_System_Net_Http_Above_4_0(string assemblyFile)
+    {
+        var asm = Assembly.LoadFrom(assemblyFile);
+        foreach (var referencedAssembly in asm.GetReferencedAssemblies())
+        {
+            if (referencedAssembly.Name == "System.Net.Http")
+            {
+                Assert.That(referencedAssembly.Version, Is.EqualTo(new Version("4.0.0.0")));
+            }
+        }
+    }
+
     [DatapointSource]
-    string[] GitHubAssemblies => Directory.GetFiles(AssemblyDirectory, "GitHub.*.dll");
+    string[] GetGitHubAssemblies()
+    {
+        var prefix = "GitHub.";
+        if (NCrunchEnvironment.NCrunchIsResident())
+        {
+            return NCrunchEnvironment.GetAllAssemblyLocations()
+                .Where(p => Path.GetFileName(p).StartsWith(prefix, StringComparison.OrdinalIgnoreCase))
+                .ToArray();
+        }
+        else
+        {
+            var dir = Path.GetDirectoryName(GetType().Assembly.Location);
+            return Directory.GetFiles(dir, $"{prefix}*.dll");
+        }
+    }
 
-    string AssemblyDirectory => Path.GetDirectoryName(GetType().Assembly.Location);
 }