diff --git a/packages/wyatt_architecture/example/lib/domain/usecases/photos/add_photo_to_favorites.dart b/packages/wyatt_architecture/example/lib/domain/usecases/photos/add_photo_to_favorites.dart
index 7a65835b..b3d74ab5 100644
--- a/packages/wyatt_architecture/example/lib/domain/usecases/photos/add_photo_to_favorites.dart
+++ b/packages/wyatt_architecture/example/lib/domain/usecases/photos/add_photo_to_favorites.dart
@@ -23,8 +23,8 @@ class AddPhotoToFavorites extends AsyncUseCase<Photo, List<Photo>> {
   final PhotoRepository _photoRepository;
 
   @override
-  FutureOrResult<List<Photo>> execute(Photo params) async {
-    await _photoRepository.addPhotoToFavorites(params);
+  FutureOrResult<List<Photo>> execute(Photo? params) async {
+    await _photoRepository.addPhotoToFavorites(params!);
     return _photoRepository.getAllPhotosFromFavorites();
   }
 }
diff --git a/packages/wyatt_architecture/example/lib/domain/usecases/photos/check_if_photo_is_in_favorites.dart b/packages/wyatt_architecture/example/lib/domain/usecases/photos/check_if_photo_is_in_favorites.dart
index a9c082df..31e6c622 100644
--- a/packages/wyatt_architecture/example/lib/domain/usecases/photos/check_if_photo_is_in_favorites.dart
+++ b/packages/wyatt_architecture/example/lib/domain/usecases/photos/check_if_photo_is_in_favorites.dart
@@ -22,6 +22,6 @@ class CheckIfPhotoIsInFavorites extends AsyncUseCase<int, bool> {
   final PhotoRepository _photoRepository;
 
   @override
-  FutureOrResult<bool> execute(int params) async =>
-      _photoRepository.checkIfPhotoIsInFavorites(params);
+  FutureOrResult<bool> execute(int? params) async =>
+      _photoRepository.checkIfPhotoIsInFavorites(params!);
 }
diff --git a/packages/wyatt_architecture/example/lib/domain/usecases/photos/display_photo.dart b/packages/wyatt_architecture/example/lib/domain/usecases/photos/display_photo.dart
index 94697367..4d6dc2f7 100644
--- a/packages/wyatt_architecture/example/lib/domain/usecases/photos/display_photo.dart
+++ b/packages/wyatt_architecture/example/lib/domain/usecases/photos/display_photo.dart
@@ -23,8 +23,8 @@ class DisplayPhoto extends AsyncUseCase<int, Photo> {
   final PhotoRepository _photoRepository;
 
   @override
-  FutureOrResult<Photo> execute(int params) {
-    final photo = _photoRepository.getPhoto(params);
+  FutureOrResult<Photo> execute(int? params) {
+    final photo = _photoRepository.getPhoto(params!);
     return photo;
   }
 }
diff --git a/packages/wyatt_architecture/example/lib/domain/usecases/photos/open_album.dart b/packages/wyatt_architecture/example/lib/domain/usecases/photos/open_album.dart
index 49ad971a..f3cd6ec6 100644
--- a/packages/wyatt_architecture/example/lib/domain/usecases/photos/open_album.dart
+++ b/packages/wyatt_architecture/example/lib/domain/usecases/photos/open_album.dart
@@ -24,9 +24,9 @@ class OpenAlbum extends AsyncUseCase<QueryParameters, List<Photo>> {
   final PhotoRepository _photoRepository;
 
   @override
-  FutureOrResult<List<Photo>> execute(QueryParameters params) {
+  FutureOrResult<List<Photo>> execute(QueryParameters? params) {
     final photos = _photoRepository.getPhotosFromAlbum(
-      params.albumId,
+      params!.albumId,
       start: params.start,
       limit: params.limit,
     );
diff --git a/packages/wyatt_architecture/example/lib/domain/usecases/photos/remove_photo_from_favorites.dart b/packages/wyatt_architecture/example/lib/domain/usecases/photos/remove_photo_from_favorites.dart
index 99ce521a..99a9944c 100644
--- a/packages/wyatt_architecture/example/lib/domain/usecases/photos/remove_photo_from_favorites.dart
+++ b/packages/wyatt_architecture/example/lib/domain/usecases/photos/remove_photo_from_favorites.dart
@@ -23,8 +23,8 @@ class RemovePhotoFromFavorites extends AsyncUseCase<int, List<Photo>> {
   final PhotoRepository _photoRepository;
 
   @override
-  FutureOrResult<List<Photo>> execute(int params) async {
-    await _photoRepository.deletePhotoFromFavorites(params);
+  FutureOrResult<List<Photo>> execute(int? params) async {
+    await _photoRepository.deletePhotoFromFavorites(params!);
     return _photoRepository.getAllPhotosFromFavorites();
   }
 }
diff --git a/packages/wyatt_architecture/example/lib/domain/usecases/photos/retrieve_all_albums.dart b/packages/wyatt_architecture/example/lib/domain/usecases/photos/retrieve_all_albums.dart
index 08ae48ff..0247febf 100644
--- a/packages/wyatt_architecture/example/lib/domain/usecases/photos/retrieve_all_albums.dart
+++ b/packages/wyatt_architecture/example/lib/domain/usecases/photos/retrieve_all_albums.dart
@@ -24,9 +24,9 @@ class RetrieveAllAlbums extends AsyncUseCase<QueryParameters, List<Album>> {
   final PhotoRepository _photoRepository;
 
   @override
-  FutureOrResult<List<Album>> execute(QueryParameters params) {
+  FutureOrResult<List<Album>> execute(QueryParameters? params) {
     final albums = _photoRepository.getAllAlbums(
-      start: params.start,
+      start: params!.start,
       limit: params.limit,
     );
     return albums;
diff --git a/packages/wyatt_architecture/example/pubspec.yaml b/packages/wyatt_architecture/example/pubspec.yaml
index c9353b10..5316af44 100644
--- a/packages/wyatt_architecture/example/pubspec.yaml
+++ b/packages/wyatt_architecture/example/pubspec.yaml
@@ -50,7 +50,7 @@ dependencies:
     version: ^2.0.1
   wyatt_type_utils:
     hosted: https://git.wyatt-studio.fr/api/packages/Wyatt-FOSS/pub
-    version: ^0.0.5
+    version: ^0.1.0+1
 
 dev_dependencies:
   build_runner: ^2.3.2
diff --git a/packages/wyatt_authentication_bloc/example/pubspec.yaml b/packages/wyatt_authentication_bloc/example/pubspec.yaml
index 97d18341..df947ad9 100644
--- a/packages/wyatt_authentication_bloc/example/pubspec.yaml
+++ b/packages/wyatt_authentication_bloc/example/pubspec.yaml
@@ -50,7 +50,7 @@ dependencies:
 
   wyatt_type_utils:
     hosted: https://git.wyatt-studio.fr/api/packages/Wyatt-FOSS/pub/
-    version: 0.0.5
+    version: ^0.1.0+1
 
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
diff --git a/packages/wyatt_crud_bloc/wyatt_crud_bloc_firestore/pubspec.yaml b/packages/wyatt_crud_bloc/wyatt_crud_bloc_firestore/pubspec.yaml
index 41c10fa6..9cb8b921 100644
--- a/packages/wyatt_crud_bloc/wyatt_crud_bloc_firestore/pubspec.yaml
+++ b/packages/wyatt_crud_bloc/wyatt_crud_bloc_firestore/pubspec.yaml
@@ -21,11 +21,11 @@ dependencies:
 
   wyatt_type_utils:
     hosted: https://git.wyatt-studio.fr/api/packages/Wyatt-FOSS/pub/
-    version: ^0.0.5
+    version: ^0.1.0+1
   
   wyatt_crud_bloc:
     hosted: https://git.wyatt-studio.fr/api/packages/Wyatt-FOSS/pub/
-    version: ^0.2.0
+    version: ^0.2.0+2
 
 dev_dependencies:
   flutter_test: { sdk: flutter }