diff --git a/apps/board/serializers.py b/apps/board/serializers.py
index 10b6141..ce37139 100644
--- a/apps/board/serializers.py
+++ b/apps/board/serializers.py
@@ -9,8 +9,8 @@ class Meta:
         model = AttachedFile
         fields = '__all__'
 
-class PostSerializer(serializers.ModelSerializer):
 
+class PostSerializer(serializers.ModelSerializer):
     attachedfile_set = AttachedFileSerializer(many=True, read_only=True)
     is_permitted_to_read = serializers.SerializerMethodField()
     is_permitted_to_edit = serializers.SerializerMethodField()
@@ -53,7 +53,8 @@ class Meta:
         )
         depth = 2
 
-class RetrivePostSerializer(serializers.ModelSerializer):
+
+class RetrievePostSerializer(serializers.ModelSerializer):
     class Meta:
         model = Post
         fields = (
@@ -62,6 +63,7 @@ class Meta:
             'board',
         )
 
+
 class CreatePostSerializer(serializers.ModelSerializer):
     class Meta:
         model = Post
diff --git a/apps/board/viewsets.py b/apps/board/viewsets.py
index b3b3a6e..adc426a 100644
--- a/apps/board/viewsets.py
+++ b/apps/board/viewsets.py
@@ -4,14 +4,16 @@
 from django.db.models import Q
 
 from apps.board.models import Post
-from apps.board.serializers import PostSerializer, CreatePostSerializer, RetrivePostSerializer
+from apps.board.serializers import PostSerializer, CreatePostSerializer, RetrievePostSerializer
 
 from apps.board.constants import POST_PER_PAGE, BOARD_ROLE
 from apps.manager.constants import *
 
+
 class PostPagination(LimitOffsetPagination):
     default_limit = POST_PER_PAGE
 
+
 class PostViewSet(
         mixins.ListModelMixin,
         mixins.RetrieveModelMixin,
@@ -49,6 +51,6 @@ def get_serializer_class(self):
         if self.action == 'create':
             return CreatePostSerializer
         elif self.action == 'retrive':
-            return RetrivePostSerializer
+            return RetrievePostSerializer
         else:
             return PostSerializer