diff --git a/csharp/src/Lino.Objects.Codec/Lino.Objects.Codec.csproj b/csharp/src/Lino.Objects.Codec/Lino.Objects.Codec.csproj
index ebdec31..76ccb0a 100644
--- a/csharp/src/Lino.Objects.Codec/Lino.Objects.Codec.csproj
+++ b/csharp/src/Lino.Objects.Codec/Lino.Objects.Codec.csproj
@@ -22,7 +22,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="Link.Foundation.Links.Notation" Version="0.16.1" />
+    <PackageReference Include="Link.Foundation.Links.Notation" Version="0.19.0" />
   </ItemGroup>
 
 </Project>
diff --git a/csharp/tests/Lino.Objects.Codec.Tests/Lino.Objects.Codec.Tests.csproj b/csharp/tests/Lino.Objects.Codec.Tests/Lino.Objects.Codec.Tests.csproj
index fab86dd..2780ef8 100644
--- a/csharp/tests/Lino.Objects.Codec.Tests/Lino.Objects.Codec.Tests.csproj
+++ b/csharp/tests/Lino.Objects.Codec.Tests/Lino.Objects.Codec.Tests.csproj
@@ -9,7 +9,7 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.9.0" />
+    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="18.10.0" />
     <PackageReference Include="xunit.v3" Version="4.0.0" />
     <PackageReference Include="xunit.runner.visualstudio" Version="4.0.0">
       <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
@@ -19,7 +19,7 @@
          longer supports the VSTest target that coverlet.collector plugs into.
          This is the coverage collector for the new platform; it is what
          the coverage run in CI uses. -->
-    <PackageReference Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.11.0" />
+    <PackageReference Include="Microsoft.Testing.Extensions.CodeCoverage" Version="18.11.2" />
   </ItemGroup>
 
   <ItemGroup>