diff --git a/backend/apps/interactions/views.py b/backend/apps/interactions/views.py
index 6db26c5..c92d5ca 100644
--- a/backend/apps/interactions/views.py
+++ b/backend/apps/interactions/views.py
@@ -1,4 +1,5 @@
 from rest_framework import viewsets, permissions, status, filters
+from django_filters.rest_framework import DjangoFilterBackend
 from rest_framework.decorators import action
 from rest_framework.response import Response
 from .models import Comment, Rating, Like, Favorite
@@ -18,7 +19,7 @@ class CommentViewSet(viewsets.ModelViewSet):
 
     queryset = Comment.objects.select_related('author')
     permission_classes = [permissions.IsAuthenticatedOrReadOnly]
-    filter_backends = [filters.SearchFilter, filters.OrderingFilter, filters.DjangoFilterBackend]
+    filter_backends = [filters.SearchFilter, filters.OrderingFilter, DjangoFilterBackend]
     search_fields = ['content']
     filterset_fields = ['target_type', 'target_id', 'ai_status']
     ordering_fields = ['created_at']
@@ -96,7 +97,7 @@ class RatingViewSet(viewsets.ModelViewSet):
     queryset = Rating.objects.select_related('user')
     serializer_class = RatingSerializer
     permission_classes = [permissions.IsAuthenticatedOrReadOnly]
-    filter_backends = [filters.SearchFilter, filters.OrderingFilter, filters.DjangoFilterBackend]
+    filter_backends = [filters.SearchFilter, filters.OrderingFilter, DjangoFilterBackend]
     filterset_fields = ['target_type', 'target_id', 'user']
     ordering_fields = ['created_at']
     ordering = ['-created_at']
@@ -138,7 +139,7 @@ class LikeViewSet(viewsets.ModelViewSet):
     queryset = Like.objects.select_related('user')
     serializer_class = LikeSerializer
     permission_classes = [permissions.IsAuthenticated]
-    filter_backends = [filters.OrderingFilter, filters.DjangoFilterBackend]
+    filter_backends = [filters.OrderingFilter, DjangoFilterBackend]
     filterset_fields = ['target_type', 'target_id', 'user']
     ordering_fields = ['created_at']
     ordering = ['-created_at']
@@ -189,7 +190,7 @@ class FavoriteViewSet(viewsets.ModelViewSet):
     queryset = Favorite.objects.select_related('user')
     serializer_class = FavoriteSerializer
     permission_classes = [permissions.IsAuthenticated]
-    filter_backends = [filters.OrderingFilter, filters.DjangoFilterBackend]
+    filter_backends = [filters.OrderingFilter, DjangoFilterBackend]
     filterset_fields = ['target_type', 'target_id', 'user']
     ordering_fields = ['created_at']
     ordering = ['-created_at']
diff --git a/backend/apps/moderation/views.py b/backend/apps/moderation/views.py
index 4798a5c..b5b6f72 100644
--- a/backend/apps/moderation/views.py
+++ b/backend/apps/moderation/views.py
@@ -1,4 +1,5 @@
 from rest_framework import viewsets, permissions, status, filters
+from django_filters.rest_framework import DjangoFilterBackend
 from rest_framework.decorators import action
 from rest_framework.response import Response
 from django.db.models import Q
@@ -21,7 +22,7 @@ class ModeratorApplicationViewSet(viewsets.ModelViewSet):
     """ViewSet for ModeratorApplication model."""
 
     permission_classes = [permissions.IsAuthenticated]
-    filter_backends = [filters.SearchFilter, filters.OrderingFilter, filters.DjangoFilterBackend]
+    filter_backends = [filters.SearchFilter, filters.OrderingFilter, DjangoFilterBackend]
     search_fields = ['applicant__username', 'region__name']
     filterset_fields = ['status', 'rank', 'region']
     ordering_fields = ['created_at', 'deadline']