diff --git a/api/v1/serializers/course.py b/api/v1/serializers/course.py
index 8ee35447..feb6fb78 100644
--- a/api/v1/serializers/course.py
+++ b/api/v1/serializers/course.py
@@ -112,11 +112,13 @@ class CourseCreateSerializer(DispatchContentMixin,
             'deactivated_at',
             'content',
             'gallery',
+            'lessons',
         )
 
         read_only_fields = (
             'id',
             'url',
+            'lessons',
             'created_at',
             'update_at',
             'deactivated_at',
@@ -152,15 +154,6 @@ class CourseCreateSerializer(DispatchContentMixin,
             return CourseSerializer(instance, context=self.context).to_representation(instance)
 
 
-class CourseSerializer(CourseCreateSerializer):
-    author = UserSerializer()
-    category = CategorySerializer()
-    materials = MaterialSerializer(many=True)
-    cover = ImageObjectSerializer()
-    gallery = GallerySerializer()
-    content = ContentSerializer(many=True)
-
-
 class LessonCreateSerializer(serializers.ModelSerializer):
     content = serializers.ListSerializer(
         child=ContentCreateSerializer(),
@@ -296,6 +289,16 @@ class LessonCreateSerializer(serializers.ModelSerializer):
 
 
 class LessonSerializer(LessonCreateSerializer):
-    course = CourseSerializer()
+    # course = CourseSerializer()
     cover = ImageObjectSerializer()
     content = ContentSerializer(many=True)
+
+
+class CourseSerializer(CourseCreateSerializer):
+    author = UserSerializer()
+    category = CategorySerializer()
+    materials = MaterialSerializer(many=True)
+    cover = ImageObjectSerializer()
+    gallery = GallerySerializer()
+    content = ContentSerializer(many=True)
+    lessons = LessonSerializer(many=True)