diff --git a/Demka-2.Desktop/Demka-2.Desktop.csproj b/Demka-2.Desktop/Demka-2.Desktop.csproj
index 9961173..9c6f2d2 100644
--- a/Demka-2.Desktop/Demka-2.Desktop.csproj
+++ b/Demka-2.Desktop/Demka-2.Desktop.csproj
@@ -11,7 +11,7 @@
 
   <ItemGroup>
     <PackageReference Include="Avalonia.Desktop" Version="11.2.3" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="8.0.11" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="9.0.0" />
     <PackageReference Include="Microsoft.OpenApi" Version="1.6.23" />
   </ItemGroup>
 
diff --git a/Demka-2/Demka-2.csproj b/Demka-2/Demka-2.csproj
index 6c1a0bb..efc7117 100644
--- a/Demka-2/Demka-2.csproj
+++ b/Demka-2/Demka-2.csproj
@@ -17,7 +17,7 @@
     <!--Condition below is needed to remove Avalonia.Diagnostics package from build output in Release configuration.-->
     <PackageReference Condition="'$(Configuration)' == 'Debug'" Include="Avalonia.Diagnostics" Version="11.2.3" />
     <PackageReference Include="Microsoft.EntityFrameworkCore" Version="9.0.0" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="8.0.11" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="9.0.0" />
     <PackageReference Include="Microsoft.OpenApi" Version="1.6.23" />
   </ItemGroup>
 </Project>
diff --git a/Demka-2/Use/Service.cs b/Demka-2/Use/Service.cs
index aa431ed..7f7f1a6 100644
--- a/Demka-2/Use/Service.cs
+++ b/Demka-2/Use/Service.cs
@@ -1,6 +1,9 @@
-namespace Demka_2.Use;
+using System;
+
+namespace Demka_2.Use;
 public class Service
 {
+    public Guid guid {  get; set; }
     public string Name { get; set; }
     public decimal Price { get; set; }
     public decimal Discount { get; set; }