diff --git a/tests/Harnfig.IntegrationTests/Harnfig.IntegrationTests.csproj b/tests/Harnfig.IntegrationTests/Harnfig.IntegrationTests.csproj
index 5e4d98b..bfacde0 100644
--- a/tests/Harnfig.IntegrationTests/Harnfig.IntegrationTests.csproj
+++ b/tests/Harnfig.IntegrationTests/Harnfig.IntegrationTests.csproj
@@ -4,7 +4,7 @@
     <IsPackable>false</IsPackable>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.8.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.9.0" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5">
       <PrivateAssets>all</PrivateAssets>
diff --git a/tests/Harnfig.Tests/Harnfig.Tests.csproj b/tests/Harnfig.Tests/Harnfig.Tests.csproj
index 5e4d98b..bfacde0 100644
--- a/tests/Harnfig.Tests/Harnfig.Tests.csproj
+++ b/tests/Harnfig.Tests/Harnfig.Tests.csproj
@@ -4,7 +4,7 @@
     <IsPackable>false</IsPackable>
   </PropertyGroup>
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.8.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.9.0" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5">
       <PrivateAssets>all</PrivateAssets>