diff --git a/tests/TurnerSoftware.SitemapTools.Tests/TurnerSoftware.SitemapTools.Tests.csproj b/tests/TurnerSoftware.SitemapTools.Tests/TurnerSoftware.SitemapTools.Tests.csproj
index 73dd665..b90f68d 100644
--- a/tests/TurnerSoftware.SitemapTools.Tests/TurnerSoftware.SitemapTools.Tests.csproj
+++ b/tests/TurnerSoftware.SitemapTools.Tests/TurnerSoftware.SitemapTools.Tests.csproj
@@ -20,7 +20,7 @@
 		<PackageReference Include="Microsoft.AspNetCore.StaticFiles" Version="2.2.0" />
 		<PackageReference Include="Microsoft.AspNetCore.TestHost" Version="2.2.0" />
 		<PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.6.3" />
-		<PackageReference Include="MSTest.TestAdapter" Version="3.0.4" />
+		<PackageReference Include="MSTest.TestAdapter" Version="3.1.1" />
 		<PackageReference Include="MSTest.TestFramework" Version="3.1.1" />
 		<PackageReference Include="coverlet.collector" Version="6.0.0">
 			<PrivateAssets>all</PrivateAssets>