diff --git a/DateTimeOnly.Tests/DateTimeOnly.Tests.csproj b/DateTimeOnly.Tests/DateTimeOnly.Tests.csproj
index a7d9f18..99fac11 100644
--- a/DateTimeOnly.Tests/DateTimeOnly.Tests.csproj
+++ b/DateTimeOnly.Tests/DateTimeOnly.Tests.csproj
@@ -10,7 +10,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.7.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.8.1" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="3.1.5">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>