diff --git a/Directory.Build.props b/Directory.Build.props
new file mode 100644
index 0000000000..c7568165b2
--- /dev/null
+++ b/Directory.Build.props
@@ -0,0 +1,7 @@
+<Project>
+  <PropertyGroup Label="Strong name signing">
+    <SignAssembly>true</SignAssembly>
+    <AssemblyOriginatorKeyFile>$(MSBuildThisFileDirectory)\key.snk</AssemblyOriginatorKeyFile>
+    <StrongNameSuffix>, PublicKey=0024000004800000940000000602000000240000525341310004000001000100f1e6b635f0c0b44c03d712e4f2cf789ddb54d7f74a9b34e2ece3aafb6afbfd46ec2b033f4104ef88f6afec226c5c647f453852ba3847fd9e37727c7dcb54e24731a288a107457a2c3e8b26ab04c25b206797be48cfe7a2b2c427422d0b0dd18c82111f21798f997e5d33ecc25c677744709c3785e0e650d6e0456a034a31acc4</StrongNameSuffix>
+  </PropertyGroup>
+</Project>
diff --git a/Octokit.Tests.Integration/Octokit.Tests.Integration.csproj b/Octokit.Tests.Integration/Octokit.Tests.Integration.csproj
index e39bcfe252..2f00a3dfe2 100644
--- a/Octokit.Tests.Integration/Octokit.Tests.Integration.csproj
+++ b/Octokit.Tests.Integration/Octokit.Tests.Integration.csproj
@@ -5,6 +5,7 @@
     <AssemblyTitle>Octokit.Tests.Integration</AssemblyTitle>
     <Authors>GitHub</Authors>
     <TargetFrameworks>net6.0;netcoreapp3.1;net462</TargetFrameworks>
+    <SignAssembly>false</SignAssembly>
     <NoWarn>$(NoWarn);CS4014;CS1998</NoWarn>
     <AssemblyName>Octokit.Tests.Integration</AssemblyName>
     <PackageId>Octokit.Tests.Integration</PackageId>
diff --git a/Octokit/Octokit.csproj b/Octokit/Octokit.csproj
index 33b13e2f7c..b212b79773 100644
--- a/Octokit/Octokit.csproj
+++ b/Octokit/Octokit.csproj
@@ -32,4 +32,9 @@
     <PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.1.1" PrivateAssets="All" />
   </ItemGroup>
 
+  <ItemGroup Label="InternalsVisibleTo attributes">
+    <AssemblyAttribute Include="System.Runtime.CompilerServices.InternalsVisibleTo">
+      <_Parameter1>Octokit.Tests$(StrongNameSuffix)</_Parameter1>
+    </AssemblyAttribute>
+  </ItemGroup>
 </Project>
diff --git a/Octokit/Properties/AssemblyInfo.cs b/Octokit/Properties/AssemblyInfo.cs
deleted file mode 100644
index e783bcb861..0000000000
--- a/Octokit/Properties/AssemblyInfo.cs
+++ /dev/null
@@ -1,3 +0,0 @@
-using System.Runtime.CompilerServices;
-
-[assembly: InternalsVisibleTo("Octokit.Tests")]
\ No newline at end of file
diff --git a/build/Build.csproj b/build/Build.csproj
index 97efd74a08..0055bcf040 100644
--- a/build/Build.csproj
+++ b/build/Build.csproj
@@ -2,6 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
+    <SignAssembly>false</SignAssembly>
     <TargetFramework>netcoreapp3.1</TargetFramework>
     <RunWorkingDirectory>$(MSBuildProjectDirectory)/..</RunWorkingDirectory>
   </PropertyGroup>
diff --git a/key.snk b/key.snk
new file mode 100644
index 0000000000..e85f2d4c92
Binary files /dev/null and b/key.snk differ