diff --git a/Yafc.Model.Tests/Yafc.Model.Tests.csproj b/Yafc.Model.Tests/Yafc.Model.Tests.csproj
index 886d8e7d..37a96f41 100644
--- a/Yafc.Model.Tests/Yafc.Model.Tests.csproj
+++ b/Yafc.Model.Tests/Yafc.Model.Tests.csproj
@@ -5,7 +5,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.4.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.5.1" />
     <PackageReference Include="xunit" Version="2.9.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.8.2">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
diff --git a/Yafc.Parser.Tests/Yafc.Parser.Tests.csproj b/Yafc.Parser.Tests/Yafc.Parser.Tests.csproj
index 3aec93ae..b2bf6338 100644
--- a/Yafc.Parser.Tests/Yafc.Parser.Tests.csproj
+++ b/Yafc.Parser.Tests/Yafc.Parser.Tests.csproj
@@ -8,7 +8,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.4.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.5.1" />
     <PackageReference Include="xunit" Version="2.5.3" />
     <PackageReference Include="xunit.runner.visualstudio" Version="2.5.3" />
   </ItemGroup>