diff --git a/dotnet/AipsCore/Domain/Models/Shape/Shape.cs b/dotnet/AipsCore/Domain/Models/Shape/Shape.cs
index 0503bf5..ad82098 100644
--- a/dotnet/AipsCore/Domain/Models/Shape/Shape.cs
+++ b/dotnet/AipsCore/Domain/Models/Shape/Shape.cs
@@ -1,4 +1,4 @@
-using System.Drawing;
+using AipsCore.Domain.Common.ValueObjects;
 using AipsCore.Domain.Models.Shape.Enums;
 using AipsCore.Domain.Models.Shape.ValueObjects;
 using AipsCore.Domain.Models.Whiteboard.ValueObjects;
diff --git a/dotnet/AipsCore/Domain/Models/Shape/Sub/Arrow/Arrow.cs b/dotnet/AipsCore/Domain/Models/Shape/Sub/Arrow/Arrow.cs
index ab8593b..19d4f2a 100644
--- a/dotnet/AipsCore/Domain/Models/Shape/Sub/Arrow/Arrow.cs
+++ b/dotnet/AipsCore/Domain/Models/Shape/Sub/Arrow/Arrow.cs
@@ -1,4 +1,4 @@
-using System.Drawing;
+using AipsCore.Domain.Common.ValueObjects;
 using AipsCore.Domain.Models.Shape.Enums;
 using AipsCore.Domain.Models.Shape.ValueObjects;
 using AipsCore.Domain.Models.Whiteboard.ValueObjects;
diff --git a/dotnet/AipsCore/Domain/Models/Shape/Sub/Line/Line.cs b/dotnet/AipsCore/Domain/Models/Shape/Sub/Line/Line.cs
index 5ce452c..7df8962 100644
--- a/dotnet/AipsCore/Domain/Models/Shape/Sub/Line/Line.cs
+++ b/dotnet/AipsCore/Domain/Models/Shape/Sub/Line/Line.cs
@@ -1,4 +1,4 @@
-using System.Drawing;
+using AipsCore.Domain.Common.ValueObjects;
 using AipsCore.Domain.Models.Shape.Enums;
 using AipsCore.Domain.Models.Shape.ValueObjects;
 using AipsCore.Domain.Models.Whiteboard.ValueObjects;
diff --git a/dotnet/AipsCore/Domain/Models/Shape/Sub/Rectangle/Rectangle.cs b/dotnet/AipsCore/Domain/Models/Shape/Sub/Rectangle/Rectangle.cs
index fee0a10..bd47b7f 100644
--- a/dotnet/AipsCore/Domain/Models/Shape/Sub/Rectangle/Rectangle.cs
+++ b/dotnet/AipsCore/Domain/Models/Shape/Sub/Rectangle/Rectangle.cs
@@ -1,4 +1,4 @@
-using System.Drawing;
+using AipsCore.Domain.Common.ValueObjects;
 using AipsCore.Domain.Models.Shape.Enums;
 using AipsCore.Domain.Models.Shape.ValueObjects;
 using AipsCore.Domain.Models.Whiteboard.ValueObjects;
diff --git a/dotnet/AipsCore/Domain/Models/Shape/Sub/TextShape/TextShape.cs b/dotnet/AipsCore/Domain/Models/Shape/Sub/TextShape/TextShape.cs
index 5b92592..d180e09 100644
--- a/dotnet/AipsCore/Domain/Models/Shape/Sub/TextShape/TextShape.cs
+++ b/dotnet/AipsCore/Domain/Models/Shape/Sub/TextShape/TextShape.cs
@@ -1,4 +1,4 @@
-using System.Drawing;
+using AipsCore.Domain.Common.ValueObjects;
 using AipsCore.Domain.Models.Shape.Enums;
 using AipsCore.Domain.Models.Shape.Sub.TextShape.ValueObjects;
 using AipsCore.Domain.Models.Shape.ValueObjects;