diff --git a/api/v1/serializers.py b/api/v1/serializers.py
index e6d939de..96630f50 100644
--- a/api/v1/serializers.py
+++ b/api/v1/serializers.py
@@ -74,7 +74,7 @@ class GalleryImageSerializer(GalleryImageCreateSerializer):
     img = ImageObjectSerializer()
 
 
-class MaterialSerializer(serializers.ModelSerializer):
+class MaterialCreateSerializer(serializers.ModelSerializer):
 
     class Meta:
         model = Material
@@ -89,12 +89,15 @@ class MaterialSerializer(serializers.ModelSerializer):
 
         read_only_fields = (
             'id',
-            'cover',
             'created_at',
             'update_at',
         )
 
 
+class MaterialSerializer(MaterialCreateSerializer):
+    cover = ImageObjectSerializer()
+
+
 class LikeSerializer(serializers.ModelSerializer):
 
     class Meta:
diff --git a/api/v1/views.py b/api/v1/views.py
index 6f293576..db87e030 100644
--- a/api/v1/views.py
+++ b/api/v1/views.py
@@ -7,9 +7,9 @@ from rest_framework.response import Response
 
 from . import ExtendedModelViewSet
 from .serializers import (
-    CategorySerializer,
+    CategorySerializer, LikeSerializer,
     CourseSerializer, CourseCreateSerializer,
-    MaterialSerializer, LikeSerializer,
+    MaterialSerializer, MaterialCreateSerializer,
     ImageSerializer, ImageCreateSerializer,
     TextSerializer, TextCreateSerializer,
     ImageTextSerializer, ImageTextCreateSerializer,
@@ -39,7 +39,11 @@ class ImageObjectViewSet(ExtendedModelViewSet):
 
 class MaterialViewSet(ExtendedModelViewSet):
     queryset = Material.objects.all()
-    serializer_class = MaterialSerializer
+    serializer_class = MaterialCreateSerializer
+    serializer_class_map = {
+        'list': MaterialSerializer,
+        'retrieve': MaterialSerializer,
+    }
     search_fields = ('title', 'short_description',)
     ordering_fields = ('title', 'created_at', 'update_at',)
     # permission_classes = (IsAdmin,)