diff --git a/Sources/OpenLibraryWrapper_UT/BookController_UT.cs b/Sources/OpenLibraryWrapper_UT/BookController_UT.cs
index f5bd29f..80cf947 100644
--- a/Sources/OpenLibraryWrapper_UT/BookController_UT.cs
+++ b/Sources/OpenLibraryWrapper_UT/BookController_UT.cs
@@ -1,10 +1,10 @@
-using DtoAbstractLayer;
-using LibraryDTO;
-using Microsoft.AspNetCore.Http;
+using DtoAbstractLayer;
+using LibraryDTO;
+using Microsoft.AspNetCore.Http;
 using Microsoft.AspNetCore.Http.HttpResults;
-using Microsoft.AspNetCore.Mvc;
+using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Logging;
-using Microsoft.Extensions.Logging.Abstractions;
+using Microsoft.Extensions.Logging.Abstractions;
 using OpenLibraryClient;
 using OpenLibraryWrapper.Controllers;
 using StubbedDTO;
@@ -14,7 +14,7 @@ namespace OpenLibraryWrapper_UT;
 public class BookController_UT
 {
     private readonly BookController controller;
-    private readonly IDtoManager dtoManager = new OpenLibClientAPI();
+    private readonly IDtoManager dtoManager = new Stub();
 
     public BookController_UT()
     {
@@ -75,6 +75,6 @@ public class BookController_UT
         long nbBooks = booksTupple.Item1;
         var books = booksTupple.Item2;
 
-        Assert.Equal(5, books.Count());
+        Assert.Equal(2, books.Count());
     }
 }