diff --git a/src/AnthropicClient/Models/CreateFileRequest.cs b/src/AnthropicClient/Models/CreateFileRequest.cs
index 33bae0c..1d0fcf9 100644
--- a/src/AnthropicClient/Models/CreateFileRequest.cs
+++ b/src/AnthropicClient/Models/CreateFileRequest.cs
@@ -1,5 +1,3 @@
-using System.Text.Json.Serialization;
-
 using AnthropicClient.Utils;
 
 namespace AnthropicClient.Models;
diff --git a/src/AnthropicClient/Models/DocumentSource.cs b/src/AnthropicClient/Models/DocumentSource.cs
index e7029f2..9bc2505 100644
--- a/src/AnthropicClient/Models/DocumentSource.cs
+++ b/src/AnthropicClient/Models/DocumentSource.cs
@@ -1,7 +1,5 @@
 using System.Text.Json.Serialization;
 
-using AnthropicClient.Utils;
-
 namespace AnthropicClient.Models;
 
 /// <summary>
diff --git a/src/AnthropicClient/Models/ImageSource.cs b/src/AnthropicClient/Models/ImageSource.cs
index 35257c5..e97604a 100644
--- a/src/AnthropicClient/Models/ImageSource.cs
+++ b/src/AnthropicClient/Models/ImageSource.cs
@@ -1,7 +1,5 @@
 using System.Text.Json.Serialization;
 
-using AnthropicClient.Utils;
-
 namespace AnthropicClient.Models;
 
 /// <summary>