diff --git a/courses/tasks.py b/courses/tasks.py
index 9d00b7f..9384958 100644
--- a/courses/tasks.py
+++ b/courses/tasks.py
@@ -1,4 +1,5 @@
 from progress.models import ProgressLesson, Progress
+from django.contrib.auth import get_user_model
 
 
 def add_lesson(user_out_key: str, course_token: str, lesson_token: str, teacher_key: str, is_hm: bool):
@@ -8,5 +9,5 @@ def add_lesson(user_out_key: str, course_token: str, lesson_token: str, teacher_
     ProgressLesson.objects.get_or_create(
         progress=p,
         lesson_token=lesson_token,
-        checker=user_out_key if is_hm else teacher_key,
+        checker=get_user_model().objects.get(out_key=(teacher_key if is_hm else user_out_key)),
     )
\ No newline at end of file
diff --git a/courses/views.py b/courses/views.py
index 90450b6..1a6138b 100644
--- a/courses/views.py
+++ b/courses/views.py
@@ -108,41 +108,43 @@ class LessonDetail(APIView):
 
         l = LessonSerializer(lesson).data
 
-        if not lesson.free:
-            if jwt_token is None:
-                return Response("Ошибка доступа", status=403)
+        try:
+            payload = None if jwt_token is None\
+                else jwt.decode(jwt_token, settings.COURSE_PROGRESS_SECRET_KEY, algorithms=['HS256'])
+        except DecodeError:
+            payload = None
+
+        course = lesson.topic.course
 
-            try:
-                payload = jwt.decode(jwt_token, settings.COURSE_PROGRESS_SECRET_KEY, algorithms=['HS256'])
-            except DecodeError:
+        if payload is None:
+            if not lesson.free:
                 return Response("Bad token", status=400)
 
-            try:
-                course = Course.objects.get(token=payload['course_token'])
-            except Course.DoesNotExist:
-                return Response("Course not found", status=404)
+            else:
+                return Response(l, status=200)
+
+        prev_lesson = course.get_previous(lesson, (lambda x: not x.is_hm) if payload['only_watch'] else None)
+        next_lesson = course.get_next(lesson, (lambda x: not x.is_hm) if payload['only_watch'] else None)
 
-            prev_lesson = course.get_previous(lesson, (lambda x: not x.is_hm) if payload['only_watch'] else None)
-            next_lesson = course.get_next(lesson, (lambda x: not x.is_hm) if payload['only_watch'] else None)
+        if not prev_lesson is None:
+            l['prev_token'] = prev_lesson.token
 
-            if not prev_lesson is None:
-                l['prev_token'] = prev_lesson.token
+        if not next_lesson is None:
+            l['next_token'] = next_lesson.token
 
-            if not next_lesson is None:
-                l['next_token'] = next_lesson.token
+        new_lesson = False
+        for payload_lesson in payload['lessons']:
+            if payload_lesson['lesson_token'] == str(lesson.token):
+                return Response(l, status=200)
 
-            new_lesson = False
-            for payload_lesson in payload['lessons']:
-                if payload_lesson['lesson_token'] == str(lesson.token):
-                    return Response(l, status=200)
+            if not prev_lesson is None and str(prev_lesson.token) == payload_lesson['lesson_token']:
                 new_lesson = True if prev_lesson is None else \
-                    ((payload_lesson['status'] == "done" or payload_lesson['status'] == "wait")
-                     if prev_lesson.token == payload_lesson['lesson_token'] else False)
+                    (payload_lesson['status'] == "done" or payload_lesson['status'] == "wait")
 
-            if not new_lesson:
-                return Response("Permission denied", status=403)
+        if not new_lesson:
+            return Response("Permission denied", status=403)
 
-            #TODO Задача для селери
-            add_lesson(request.user.out_key, course.token, lesson.token, course.get_teacher(), lesson.is_hm)
+        #TODO Задача для селери
+        add_lesson(request.user.out_key, course.token, lesson.token, course.get_teacher(), lesson.is_hm)
 
         return Response(l, status=200)
diff --git a/progress/views.py b/progress/views.py
index ed3db3f..e0ae37d 100644
--- a/progress/views.py
+++ b/progress/views.py
@@ -14,7 +14,8 @@ from django.db.models import Q
 
 from courses.models import Course
 from progress.models import ProgressLesson, Progress
-from progress.serializers import ProgressAnalyticSerializer, ProgressLessonSerializer, ProgressSerializer
+from progress.serializers import ProgressAnalyticSerializer, ProgressLessonSerializer, ProgressSerializer, \
+    SecureProgressSerializer
 from courses.api import CourseProgressApi, CourseParamsApi
 from progress.tasks import add_next_lesson
 
@@ -203,13 +204,9 @@ class StudentUpdateProgress(APIView):
                 pv.save()
 
             else:
-                return Response("Ошибка прав доступа", status=403)
+                pass
 
-            if pv.status == ProgressLesson.STATUSES.done:
-                # TODO: Ассинхроннаязадача для celery
-                add_next_lesson(pv.progress)
-
-            return Response(ProgressSerializer(pv.progress).data, status=200)
+            return Response(SecureProgressSerializer(pv.progress).data, status=200)
 
         except Progress.DoesNotExist:
             return Response('Не найден прогресс по заданным параметрам', status=404)