diff --git a/apps/audits/models.py b/apps/audits/models.py
index 11f3d93f9..97496102b 100644
--- a/apps/audits/models.py
+++ b/apps/audits/models.py
@@ -4,7 +4,7 @@ from datetime import timedelta
 from importlib import import_module
 
 from django.conf import settings
-from django.core.cache import caches
+from django.core.cache import caches, cache
 from django.db import models
 from django.db.models import Q
 from django.utils import timezone
@@ -278,7 +278,8 @@ class UserSession(models.Model):
 
     @property
     def is_active(self):
-        return caches.sismember(WS_SESSION_KEY, self.key)
+        redis_client = cache.client.get_client()
+        return redis_client.sismember(WS_SESSION_KEY, self.key)
 
     @property
     def date_expired(self):
diff --git a/apps/audits/serializers.py b/apps/audits/serializers.py
index 472f6ae28..7943e02a0 100644
--- a/apps/audits/serializers.py
+++ b/apps/audits/serializers.py
@@ -177,7 +177,7 @@ class UserSessionSerializer(serializers.ModelSerializer):
         fields_mini = ['id']
         fields_small = fields_mini + [
             'type', 'ip', 'city', 'user_agent', 'user', 'is_current_user_session',
-            'backend', 'backend_display', 'date_created', 'date_expired'
+            'backend', 'backend_display', 'is_active', 'date_created', 'date_expired'
         ]
         fields = fields_small
         extra_kwargs = {
diff --git a/apps/notifications/ws.py b/apps/notifications/ws.py
index bf9e04bdd..019b0b409 100644
--- a/apps/notifications/ws.py
+++ b/apps/notifications/ws.py
@@ -1,7 +1,7 @@
 import json
 
 from channels.generic.websocket import JsonWebsocketConsumer
-from django.core.cache import caches
+from django.core.cache import cache
 
 from common.db.utils import safe_db_connection
 from common.utils import get_logger
@@ -21,7 +21,8 @@ class SiteMsgWebsocket(JsonWebsocketConsumer):
         if user.is_authenticated:
             self.accept()
             session = self.scope['session']
-            caches.sadd(WS_SESSION_KEY, session.session_key)
+            redis_client = cache.client.get_client()
+            redis_client.sadd(WS_SESSION_KEY, session.session_key)
             self.sub = self.watch_recv_new_site_msg()
         else:
             self.close()
@@ -66,4 +67,5 @@ class SiteMsgWebsocket(JsonWebsocketConsumer):
             return
         self.sub.unsubscribe()
         session = self.scope['session']
-        caches.srem(WS_SESSION_KEY, session.session_key)
+        redis_client = cache.client.get_client()
+        redis_client.srem(WS_SESSION_KEY, session.session_key)