diff --git a/Ve.DotNet.Tests/Ve.DotNet.Tests.csproj b/Ve.DotNet.Tests/Ve.DotNet.Tests.csproj
index 1cfd0f2..ea6f5ec 100644
--- a/Ve.DotNet.Tests/Ve.DotNet.Tests.csproj
+++ b/Ve.DotNet.Tests/Ve.DotNet.Tests.csproj
@@ -14,7 +14,7 @@
 
     <ItemGroup>
         <PackageReference Include="MeCab.DotNet" Version="0.0.30" />
-        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.7.1" />
+        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="16.9.1" />
         <PackageReference Include="MSTest.TestAdapter" Version="2.1.1" />
         <PackageReference Include="MSTest.TestFramework" Version="2.1.1" />
         <PackageReference Include="coverlet.collector" Version="1.3.0" />