diff --git a/tests/Lockery.Core.Tests/Lockery.Core.Tests.csproj b/tests/Lockery.Core.Tests/Lockery.Core.Tests.csproj
index 48e1bdb..0f1320b 100644
--- a/tests/Lockery.Core.Tests/Lockery.Core.Tests.csproj
+++ b/tests/Lockery.Core.Tests/Lockery.Core.Tests.csproj
@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.8.1" />
     <PackageReference Include="xunit" Version="2.9.2" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2" />
   </ItemGroup>
diff --git a/tests/Lockery.Platform.Windows.Tests/Lockery.Platform.Windows.Tests.csproj b/tests/Lockery.Platform.Windows.Tests/Lockery.Platform.Windows.Tests.csproj
index f9a8538..de0b5d9 100644
--- a/tests/Lockery.Platform.Windows.Tests/Lockery.Platform.Windows.Tests.csproj
+++ b/tests/Lockery.Platform.Windows.Tests/Lockery.Platform.Windows.Tests.csproj
@@ -10,7 +10,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.8.1" />
     <PackageReference Include="xunit" Version="2.9.2" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2" />
   </ItemGroup>