diff --git a/taiga/projects/issues/api.py b/taiga/projects/issues/api.py
index d2582223..681e8534 100644
--- a/taiga/projects/issues/api.py
+++ b/taiga/projects/issues/api.py
@@ -102,8 +102,6 @@ class IssuesOrdering(filters.FilterBackend):
 
 
 class IssueViewSet(OCCResourceMixin, HistoryResourceMixin, WatchedResourceMixin, ModelCrudViewSet):
-    serializer_class = serializers.IssueNeighborsSerializer
-    list_serializer_class = serializers.IssueSerializer
     permission_classes = (permissions.IssuePermission, )
 
     filter_backends = (filters.CanViewIssuesFilterBackend, filters.QFilter,
@@ -121,6 +119,12 @@ class IssueViewSet(OCCResourceMixin, HistoryResourceMixin, WatchedResourceMixin,
                        "assigned_to",
                        "subject")
 
+    def get_serializer_class(self, *args, **kwargs):
+        if self.action in ["retrieve", "by_ref"]:
+            return serializers.IssueNeighborsSerializer
+
+        return serializers.IssueSerializer
+
     def get_queryset(self):
         qs = models.Issue.objects.all()
         qs = qs.prefetch_related("attachments")
@@ -187,7 +191,7 @@ class IssueViewSet(OCCResourceMixin, HistoryResourceMixin, WatchedResourceMixin,
                 status=project.default_issue_status, severity=project.default_severity,
                 priority=project.default_priority, type=project.default_issue_type,
                 callback=self.post_save, precall=self.pre_save)
-            issues_serialized = self.serializer_class(issues, many=True)
+            issues_serialized = self.get_serializer_class()(issues, many=True)
 
             return response.Ok(data=issues_serialized.data)
 
diff --git a/taiga/projects/tasks/api.py b/taiga/projects/tasks/api.py
index 2f1c008b..db62d9c1 100644
--- a/taiga/projects/tasks/api.py
+++ b/taiga/projects/tasks/api.py
@@ -37,13 +37,17 @@ from . import services
 
 class TaskViewSet(OCCResourceMixin, HistoryResourceMixin, WatchedResourceMixin, ModelCrudViewSet):
     model = models.Task
-    serializer_class = serializers.TaskNeighborsSerializer
-    list_serializer_class = serializers.TaskSerializer
     permission_classes = (permissions.TaskPermission,)
     filter_backends = (filters.CanViewTasksFilterBackend,)
     filter_fields = ["user_story", "milestone", "project", "assigned_to",
         "status__is_closed", "watchers"]
 
+    def get_serializer_class(self, *args, **kwargs):
+        if self.action in ["retrieve", "by_ref"]:
+            return serializers.TaskNeighborsSerializer
+
+        return serializers.TaskSerializer
+
     def pre_save(self, obj):
         if obj.user_story:
             obj.milestone = obj.user_story.milestone
@@ -97,7 +101,7 @@ class TaskViewSet(OCCResourceMixin, HistoryResourceMixin, WatchedResourceMixin,
                 data["bulk_tasks"], milestone_id=data["sprint_id"], user_story_id=data["us_id"],
                 status_id=data.get("status_id") or project.default_task_status_id,
                 project=project, owner=request.user, callback=self.post_save, precall=self.pre_save)
-            tasks_serialized = self.serializer_class(tasks, many=True)
+            tasks_serialized = self.get_serializer_class()(tasks, many=True)
 
             return response.Ok(tasks_serialized.data)
 
diff --git a/taiga/projects/userstories/api.py b/taiga/projects/userstories/api.py
index b3e6ed05..30313536 100644
--- a/taiga/projects/userstories/api.py
+++ b/taiga/projects/userstories/api.py
@@ -46,8 +46,6 @@ from . import services
 
 class UserStoryViewSet(OCCResourceMixin, HistoryResourceMixin, WatchedResourceMixin, ModelCrudViewSet):
     model = models.UserStory
-    serializer_class = serializers.UserStoryNeighborsSerializer
-    list_serializer_class = serializers.UserStorySerializer
     permission_classes = (permissions.UserStoryPermission,)
 
     filter_backends = (filters.StatusFilter, filters.CanViewUsFilterBackend, filters.TagsFilter,
@@ -59,6 +57,12 @@ class UserStoryViewSet(OCCResourceMixin, HistoryResourceMixin, WatchedResourceMi
         "status__is_closed", "watchers", "is_closed"]
     order_by_fields = ["backlog_order", "sprint_order", "kanban_order"]
 
+    def get_serializer_class(self, *args, **kwargs):
+        if self.action in ["retrieve", "by_ref"]:
+            return serializers.UserStoryNeighborsSerializer
+
+        return serializers.UserStorySerializer
+
     # Specific filter used for filtering neighbor user stories
     _neighbor_tags_filter = filters.TagsFilter('neighbor_tags')
 
@@ -131,7 +135,7 @@ class UserStoryViewSet(OCCResourceMixin, HistoryResourceMixin, WatchedResourceMi
                 data["bulk_stories"], project=project, owner=request.user,
                 status_id=data.get("status_id") or project.default_us_status_id,
                 callback=self.post_save, precall=self.pre_save)
-            user_stories_serialized = self.serializer_class(user_stories, many=True)
+            user_stories_serialized = self.get_serializer_class()(user_stories, many=True)
             return response.Ok(user_stories_serialized.data)
         return response.BadRequest(serializer.errors)