diff --git a/tutorial/netstd/Interfaces/Interfaces.csproj b/tutorial/netstd/Interfaces/Interfaces.csproj
index de5f113..ff7891e 100644
--- a/tutorial/netstd/Interfaces/Interfaces.csproj
+++ b/tutorial/netstd/Interfaces/Interfaces.csproj
@@ -34,7 +34,7 @@
   </ItemGroup>
 
   <ItemGroup>
-    <PackageReference Include="System.ServiceModel.Primitives" Version="4.10.0" />
+    <PackageReference Include="System.ServiceModel.Primitives" Version="6.0.0" />
   </ItemGroup>
 
   <Target Name="PreBuild" BeforeTargets="_GenerateRestoreProjectSpec;Restore;Compile">