diff --git a/DigitalData.Core.API/BasicCRUDControllerBase.cs b/DigitalData.Core.API/BasicCRUDControllerBase.cs
index 0ce0d1e..d8feb17 100644
--- a/DigitalData.Core.API/BasicCRUDControllerBase.cs
+++ b/DigitalData.Core.API/BasicCRUDControllerBase.cs
@@ -7,7 +7,7 @@ namespace DigitalData.Core.API
     [ApiController]
     [Route("api/[controller]")]
     public class BasicCRUDControllerBase<TCRUDService, TDto, TEntity, TId> : CRUDControllerBase<TCRUDService, TDto, TDto, TDto, TEntity, TId>
-        where TCRUDService : ICRUDService<TDto, TDto, TDto, TEntity, TId>
+        where TCRUDService : ICRUDService<TDto, TDto, TEntity, TId>
         where TDto : class, IUnique<TId>
         where TEntity : class, IUnique<TId>
     {
diff --git a/DigitalData.Core.API/CRUDControllerBase.cs b/DigitalData.Core.API/CRUDControllerBase.cs
index 96264ba..58fe6bc 100644
--- a/DigitalData.Core.API/CRUDControllerBase.cs
+++ b/DigitalData.Core.API/CRUDControllerBase.cs
@@ -11,13 +11,12 @@ namespace DigitalData.Core.API
     /// <typeparam name="TCRUDService">The derived CRUD service type implementing ICRUDService<TCreateDto, TReadDto, TUpdateDto, TEntity, TId>.</typeparam>
     /// <typeparam name="TCreateDto">The Data Transfer Object type for create operations.</typeparam>
     /// <typeparam name="TReadDto">The Data Transfer Object type for read operations.</typeparam>
-    /// <typeparam name="TUpdateDto">The Data Transfer Object type for update operations.</typeparam>
     /// <typeparam name="TEntity">The entity type CRUD operations will be performed on.</typeparam>
     /// <typeparam name="TId">The type of the entity's identifier.</typeparam>
     [ApiController]
     [Route("api/[controller]")]
     public class CRUDControllerBase<TCRUDService, TCreateDto, TReadDto, TUpdateDto, TEntity, TId> : ControllerBase
-        where TCRUDService : ICRUDService<TCreateDto, TReadDto, TUpdateDto, TEntity, TId>
+        where TCRUDService : ICRUDService<TCreateDto, TReadDto, TEntity, TId>
         where TCreateDto : class
         where TReadDto : class
         where TUpdateDto : class, IUnique<TId>
diff --git a/DigitalData.Core.API/CRUDControllerBaseWithErrorHandling.cs b/DigitalData.Core.API/CRUDControllerBaseWithErrorHandling.cs
index 168579f..644a405 100644
--- a/DigitalData.Core.API/CRUDControllerBaseWithErrorHandling.cs
+++ b/DigitalData.Core.API/CRUDControllerBaseWithErrorHandling.cs
@@ -12,13 +12,12 @@ namespace DigitalData.Core.API
     /// <typeparam name="TCRUDService">The derived CRUD service type implementing ICRUDService<TCreateDto, TReadDto, TUpdateDto, TEntity, TId>.</typeparam>
     /// <typeparam name="TCreateDto">The Data Transfer Object type for create operations.</typeparam>
     /// <typeparam name="TReadDto">The Data Transfer Object type for read operations.</typeparam>
-    /// <typeparam name="TUpdateDto">The Data Transfer Object type for update operations.</typeparam>
     /// <typeparam name="TEntity">The entity type CRUD operations will be performed on.</typeparam>
     /// <typeparam name="TId">The type of the entity's identifier.</typeparam>
     [ApiController]
     [Route("api/[controller]")]
     public class CRUDControllerBaseWithErrorHandling<TCRUDService, TCreateDto, TReadDto, TUpdateDto, TEntity, TId> : ControllerBase
-        where TCRUDService : ICRUDService<TCreateDto, TReadDto, TUpdateDto, TEntity, TId>
+        where TCRUDService : ICRUDService<TCreateDto, TReadDto, TEntity, TId>
         where TCreateDto : class
         where TReadDto : class
         where TUpdateDto : class, IUnique<TId>
diff --git a/DigitalData.Core.Abstractions/Application/IBasicCRUDService.cs b/DigitalData.Core.Abstractions/Application/IBasicCRUDService.cs
index cda2c89..d967df8 100644
--- a/DigitalData.Core.Abstractions/Application/IBasicCRUDService.cs
+++ b/DigitalData.Core.Abstractions/Application/IBasicCRUDService.cs
@@ -15,7 +15,7 @@ namespace DigitalData.Core.Abstractions.Application
     /// This interface is useful for entities that do not require different DTOs for different operations,
     /// allowing for a more concise and maintainable codebase when implementing services for such entities.
     /// </remarks>
-    public interface IBasicCRUDService<TDto, TEntity, TId> : ICRUDService<TDto, TDto, TDto, TEntity, TId>
+    public interface IBasicCRUDService<TDto, TEntity, TId> : ICRUDService<TDto, TDto, TEntity, TId>
         where TDto : class, IUnique<TId> where TEntity : class, IUnique<TId>
     {
     }
diff --git a/DigitalData.Core.Abstractions/Application/ICRUDService.cs b/DigitalData.Core.Abstractions/Application/ICRUDService.cs
index bffd0b2..d360b59 100644
--- a/DigitalData.Core.Abstractions/Application/ICRUDService.cs
+++ b/DigitalData.Core.Abstractions/Application/ICRUDService.cs
@@ -2,8 +2,8 @@
 
 namespace DigitalData.Core.Abstractions.Application
 {
-    public interface ICRUDService<TCreateDto, TReadDto, TUpdateDto, TEntity, TId> : IReadService<TReadDto, TEntity, TId>
-        where TCreateDto : class where TReadDto : class where TUpdateDto : IUnique<TId> where TEntity : class, IUnique<TId>
+    public interface ICRUDService<TCreateDto, TReadDto, TEntity, TId> : IReadService<TReadDto, TEntity, TId>
+        where TCreateDto : class where TReadDto : class where TEntity : class, IUnique<TId>
     {
         /// <summary>
         /// Asynchronously creates a new entity based on the provided <paramref name="createDto"/> and returns the identifier of the created entity wrapped in a <see cref="DataResult{TId}"/>.
@@ -20,6 +20,6 @@ namespace DigitalData.Core.Abstractions.Application
         /// </summary>
         /// <param name="updateDto">The updateDTO with updated values for the entity.</param>
         /// <returns>An Result indicating the outcome of the update operation, with an appropriate message.</returns>
-        Task<Result> UpdateAsync(TUpdateDto updateDto);
+        Task<Result> UpdateAsync<TUpdateDto>(TUpdateDto updateDto) where TUpdateDto : IUnique<TId>;
     }
 }
\ No newline at end of file
diff --git a/DigitalData.Core.Application/BasicCRUDService.cs b/DigitalData.Core.Application/BasicCRUDService.cs
index 93ccaec..514a3d4 100644
--- a/DigitalData.Core.Application/BasicCRUDService.cs
+++ b/DigitalData.Core.Application/BasicCRUDService.cs
@@ -19,7 +19,7 @@ namespace DigitalData.Core.Application
     /// and a culture-specific translation service for any necessary text translations, ensuring a versatile and internationalized approach to CRUD operations.
     /// </remarks>
     public class BasicCRUDService<TCRUDRepository, TDto, TEntity, TId> :
-        CRUDService<TCRUDRepository, TDto, TDto, TDto, TEntity, TId>, IBasicCRUDService<TDto, TEntity, TId>
+        CRUDService<TCRUDRepository, TDto, TDto, TEntity, TId>, IBasicCRUDService<TDto, TEntity, TId>
          where TCRUDRepository : ICRUDRepository<TEntity, TId> where TDto : class, IUnique<TId> where TEntity : class, IUnique<TId>
     {
         /// <summary>
diff --git a/DigitalData.Core.Application/CRUDService.cs b/DigitalData.Core.Application/CRUDService.cs
index 342c7cb..77256fc 100644
--- a/DigitalData.Core.Application/CRUDService.cs
+++ b/DigitalData.Core.Application/CRUDService.cs
@@ -12,11 +12,10 @@ namespace DigitalData.Core.Application
     /// </summary>
     /// <typeparam name="TCreateDto">The DTO type for create operations.</typeparam>
     /// <typeparam name="TReadDto">The DTO type for read operations.</typeparam>
-    /// <typeparam name="TUpdateDto">The DTO type for update operations.</typeparam>
     /// <typeparam name="TEntity">The entity type.</typeparam>
     /// <typeparam name="TId">The type of the identifier for the entity.</typeparam>
-    public class CRUDService<TCRUDRepository, TCreateDto, TReadDto, TUpdateDto, TEntity, TId> : ReadService<TCRUDRepository, TReadDto, TEntity, TId>, ICRUDService<TCreateDto, TReadDto, TUpdateDto, TEntity, TId>
-        where TCRUDRepository : ICRUDRepository<TEntity, TId> where TCreateDto : class where TReadDto : class where TUpdateDto : IUnique<TId> where TEntity : class, IUnique<TId>
+    public class CRUDService<TCRUDRepository, TCreateDto, TReadDto, TEntity, TId> : ReadService<TCRUDRepository, TReadDto, TEntity, TId>, ICRUDService<TCreateDto, TReadDto, TEntity, TId>
+        where TCRUDRepository : ICRUDRepository<TEntity, TId> where TCreateDto : class where TReadDto : class where TEntity : class, IUnique<TId>
     {
 
         /// <summary>
@@ -45,7 +44,7 @@ namespace DigitalData.Core.Application
         /// </summary>
         /// <param name="updateDto">The DTO to update an entity from.</param>
         /// <returns>A service message indicating success or failure.</returns>
-        public virtual async Task<Result> UpdateAsync(TUpdateDto updateDto)
+        public virtual async Task<Result> UpdateAsync<TUpdateDto>(TUpdateDto updateDto) where TUpdateDto : IUnique<TId>
         {
             var currentEntitiy = await _repository.ReadByIdAsync(updateDto.Id);
 
diff --git a/DigitalData.Core.Application/DIExtensions.cs b/DigitalData.Core.Application/DIExtensions.cs
index 3ccab86..3d8b4b5 100644
--- a/DigitalData.Core.Application/DIExtensions.cs
+++ b/DigitalData.Core.Application/DIExtensions.cs
@@ -40,7 +40,6 @@ namespace DigitalData.Core.Application
         /// <typeparam name="TCRUDRepository">The repository type that provides CRUD operations for entities of type TEntity.</typeparam>
         /// <typeparam name="TCreateDto">The DTO type used for create operations.</typeparam>
         /// <typeparam name="TReadDto">The DTO type used for read operations.</typeparam>
-        /// <typeparam name="TUpdateDto">The DTO type used for update operations.</typeparam>
         /// <typeparam name="TEntity">The entity type corresponding to the DTOs.</typeparam>
         /// <typeparam name="TId">The type of the entity's identifier.</typeparam>
         /// <typeparam name="TProfile">The AutoMapper profile type for configuring mappings between the DTOs and the entity.</typeparam>
@@ -48,9 +47,9 @@ namespace DigitalData.Core.Application
         /// <param name="configureService">An optional action to configure additional services for the CRUD service.</param>
         /// <returns>The original <see cref="IServiceCollection"/> instance, allowing further configuration.</returns>
         public static IServiceCollection AddCleanCRUDService<TCRUDRepository, TCreateDto, TReadDto, TUpdateDto, TEntity, TId, TProfile>(this IServiceCollection services, Action<IServiceCollection>? configureService = null)
-            where TCRUDRepository : ICRUDRepository<TEntity, TId> where TCreateDto : class where TReadDto : class where TUpdateDto : class, IUnique<TId> where TEntity : class, IUnique<TId> where TProfile : Profile
+            where TCRUDRepository : ICRUDRepository<TEntity, TId> where TCreateDto : class where TReadDto : class, IUnique<TId> where TEntity : class, IUnique<TId> where TProfile : Profile
         {
-            services.AddScoped<ICRUDService<TCreateDto, TReadDto, TUpdateDto, TEntity, TId>, CRUDService<TCRUDRepository, TCreateDto, TReadDto, TUpdateDto, TEntity, TId>>();
+            services.AddScoped<ICRUDService<TCreateDto, TReadDto, TEntity, TId>, CRUDService<TCRUDRepository, TCreateDto, TReadDto, TEntity, TId>>();
             configureService?.Invoke(services);
 
             services.AddAutoMapper(typeof(TProfile).Assembly);