diff --git a/api/Services/IPersonService.cs b/api/Services/IPersonService.cs
index c7aa1e6..005d78e 100644
--- a/api/Services/IPersonService.cs
+++ b/api/Services/IPersonService.cs
@@ -1,3 +1,4 @@
+using api.Domain;
 using api.DTOs;
 
 namespace api.Services
@@ -5,9 +6,9 @@ namespace api.Services
     public interface IPersonService
     {
         Task<IEnumerable<PersonResponseDto>> GetAllPersonsAsync();
-        Task<PersonResponseDto> GetPersonByIdAsync(int id);
+        Task<PersonResponseDto> GetPersonByUsernameAsync(string username);
         Task AddPersonAsync(PersonRequestDto PersonDto);
-        Task UpdatePersonAsync(int id, PersonRequestDto PersonDto);
-        Task DeletePersonAsync(int id);
+        Task UpdatePersonAsync(Person person, PersonRequestDto PersonDto);
+        Task DeletePersonAsync(string username);
     }
 }
\ No newline at end of file