diff --git a/HelloOwinTests/HelloOwinTests.csproj b/HelloOwinTests/HelloOwinTests.csproj
index 2da06df..afad5b7 100644
--- a/HelloOwinTests/HelloOwinTests.csproj
+++ b/HelloOwinTests/HelloOwinTests.csproj
@@ -14,7 +14,7 @@
         <PackageReference Include="Microsoft.Owin.Diagnostics" Version="4.2.2" />
         <PackageReference Include="Microsoft.Owin.Testing" Version="4.2.2" />
         <PackageReference Include="MSFT.ParallelExtensionsExtras" Version="1.2.0" />
-        <PackageReference Include="xunit" Version="2.6.4" />
+        <PackageReference Include="xunit" Version="2.6.6" />
         <PackageReference Include="xunit.runner.console" Version="2.6.6">
           <PrivateAssets>all</PrivateAssets>
           <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>