diff --git a/netbox/core/forms/filtersets.py b/netbox/core/forms/filtersets.py
index 7c3f2ab09..d8624f6b6 100644
--- a/netbox/core/forms/filtersets.py
+++ b/netbox/core/forms/filtersets.py
@@ -1,5 +1,5 @@
 from django import forms
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.contrib.contenttypes.models import ContentType
 from django.utils.translation import gettext as _
 
@@ -105,7 +105,7 @@ class JobFilterForm(SavedFiltersMixin, FilterForm):
         widget=DateTimePicker()
     )
     user = DynamicModelMultipleChoiceField(
-        queryset=User.objects.all(),
+        queryset=get_user_model().objects.all(),
         required=False,
         label=_('User'),
         widget=APISelectMultiple(
diff --git a/netbox/core/management/commands/nbshell.py b/netbox/core/management/commands/nbshell.py
index 04a67eb49..674a878c7 100644
--- a/netbox/core/management/commands/nbshell.py
+++ b/netbox/core/management/commands/nbshell.py
@@ -5,7 +5,7 @@ import sys
 from django import get_version
 from django.apps import apps
 from django.conf import settings
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.contrib.contenttypes.models import ContentType
 from django.core.management.base import BaseCommand
 
@@ -60,7 +60,7 @@ class Command(BaseCommand):
 
         # Additional objects to include
         namespace['ContentType'] = ContentType
-        namespace['User'] = User
+        namespace['User'] = get_user_model()
 
         # Load convenience commands
         namespace.update({
diff --git a/netbox/core/models/jobs.py b/netbox/core/models/jobs.py
index a91e75e61..0715a4521 100644
--- a/netbox/core/models/jobs.py
+++ b/netbox/core/models/jobs.py
@@ -1,7 +1,7 @@
 import uuid
 
 import django_rq
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.contrib.contenttypes.fields import GenericForeignKey
 from django.contrib.contenttypes.models import ContentType
 from django.core.validators import MinValueValidator
@@ -69,7 +69,7 @@ class Job(models.Model):
         blank=True
     )
     user = models.ForeignKey(
-        to=User,
+        to=get_user_model(),
         on_delete=models.SET_NULL,
         related_name='+',
         blank=True,
diff --git a/netbox/dcim/filtersets.py b/netbox/dcim/filtersets.py
index e87a37847..e53ea8079 100644
--- a/netbox/dcim/filtersets.py
+++ b/netbox/dcim/filtersets.py
@@ -1,5 +1,5 @@
 import django_filters
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.utils.translation import gettext as _
 
 from extras.filtersets import LocalConfigContextFilterSet
@@ -395,12 +395,12 @@ class RackReservationFilterSet(NetBoxModelFilterSet, TenancyFilterSet):
         label=_('Location (slug)'),
     )
     user_id = django_filters.ModelMultipleChoiceFilter(
-        queryset=User.objects.all(),
+        queryset=get_user_model().objects.all(),
         label=_('User (ID)'),
     )
     user = django_filters.ModelMultipleChoiceFilter(
         field_name='user__username',
-        queryset=User.objects.all(),
+        queryset=get_user_model().objects.all(),
         to_field_name='username',
         label=_('User (name)'),
     )
diff --git a/netbox/dcim/forms/bulk_edit.py b/netbox/dcim/forms/bulk_edit.py
index 11cfd685d..309370bfd 100644
--- a/netbox/dcim/forms/bulk_edit.py
+++ b/netbox/dcim/forms/bulk_edit.py
@@ -1,6 +1,6 @@
 from django import forms
 from django.conf import settings
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.utils.translation import gettext as _
 from timezone_field import TimeZoneFormField
 
@@ -322,7 +322,7 @@ class RackBulkEditForm(NetBoxModelBulkEditForm):
 
 class RackReservationBulkEditForm(NetBoxModelBulkEditForm):
     user = forms.ModelChoiceField(
-        queryset=User.objects.order_by(
+        queryset=get_user_model().objects.order_by(
             'username'
         ),
         required=False
diff --git a/netbox/dcim/forms/filtersets.py b/netbox/dcim/forms/filtersets.py
index 4edee6014..0a4a22a70 100644
--- a/netbox/dcim/forms/filtersets.py
+++ b/netbox/dcim/forms/filtersets.py
@@ -1,5 +1,5 @@
 from django import forms
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.utils.translation import gettext as _
 
 from dcim.choices import *
@@ -376,7 +376,7 @@ class RackReservationFilterForm(TenancyFilterForm, NetBoxModelFilterSetForm):
         label=_('Rack')
     )
     user_id = DynamicModelMultipleChoiceField(
-        queryset=User.objects.all(),
+        queryset=get_user_model().objects.all(),
         required=False,
         label=_('User'),
         widget=APISelectMultiple(
diff --git a/netbox/dcim/forms/model_forms.py b/netbox/dcim/forms/model_forms.py
index 56542d70c..eda302736 100644
--- a/netbox/dcim/forms/model_forms.py
+++ b/netbox/dcim/forms/model_forms.py
@@ -1,5 +1,5 @@
 from django import forms
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.contrib.contenttypes.models import ContentType
 from django.utils.translation import gettext as _
 from timezone_field import TimeZoneFormField
@@ -236,7 +236,7 @@ class RackReservationForm(TenancyForm, NetBoxModelForm):
         help_text=_("Comma-separated list of numeric unit IDs. A range may be specified using a hyphen.")
     )
     user = forms.ModelChoiceField(
-        queryset=User.objects.order_by(
+        queryset=get_user_model().objects.order_by(
             'username'
         )
     )
diff --git a/netbox/dcim/models/racks.py b/netbox/dcim/models/racks.py
index e5412a3ab..777454dce 100644
--- a/netbox/dcim/models/racks.py
+++ b/netbox/dcim/models/racks.py
@@ -1,7 +1,7 @@
 import decimal
 from functools import cached_property
 
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.contrib.contenttypes.fields import GenericRelation
 from django.contrib.postgres.fields import ArrayField
 from django.core.exceptions import ValidationError
@@ -505,7 +505,7 @@ class RackReservation(PrimaryModel):
         null=True
     )
     user = models.ForeignKey(
-        to=User,
+        to=get_user_model(),
         on_delete=models.PROTECT
     )
     description = models.CharField(
diff --git a/netbox/dcim/tests/test_api.py b/netbox/dcim/tests/test_api.py
index af15e1343..235f35192 100644
--- a/netbox/dcim/tests/test_api.py
+++ b/netbox/dcim/tests/test_api.py
@@ -1,4 +1,4 @@
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.test import override_settings
 from django.urls import reverse
 from rest_framework import status
@@ -363,7 +363,7 @@ class RackReservationTest(APIViewTestCases.APIViewTestCase):
 
     @classmethod
     def setUpTestData(cls):
-        user = User.objects.create(username='user1', is_active=True)
+        user = get_user_model().objects.create(username='user1', is_active=True)
         site = Site.objects.create(name='Test Site 1', slug='test-site-1')
 
         racks = (
diff --git a/netbox/dcim/tests/test_filtersets.py b/netbox/dcim/tests/test_filtersets.py
index aa6860a16..f55be2f3f 100644
--- a/netbox/dcim/tests/test_filtersets.py
+++ b/netbox/dcim/tests/test_filtersets.py
@@ -1,4 +1,4 @@
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.test import TestCase
 
 from dcim.choices import *
@@ -593,11 +593,11 @@ class RackReservationTestCase(TestCase, ChangeLoggedFilterSetTests):
         Rack.objects.bulk_create(racks)
 
         users = (
-            User(username='User 1'),
-            User(username='User 2'),
-            User(username='User 3'),
+            get_user_model()(username='User 1'),
+            get_user_model()(username='User 2'),
+            get_user_model()(username='User 3'),
         )
-        User.objects.bulk_create(users)
+        get_user_model().objects.bulk_create(users)
 
         tenant_groups = (
             TenantGroup(name='Tenant group 1', slug='tenant-group-1'),
@@ -650,7 +650,7 @@ class RackReservationTestCase(TestCase, ChangeLoggedFilterSetTests):
         self.assertEqual(self.filterset(params, self.queryset).qs.count(), 2)
 
     def test_user(self):
-        users = User.objects.all()[:2]
+        users = get_user_model().objects.all()[:2]
         params = {'user_id': [users[0].pk, users[1].pk]}
         self.assertEqual(self.filterset(params, self.queryset).qs.count(), 2)
         params = {'user': [users[0].username, users[1].username]}
diff --git a/netbox/dcim/tests/test_views.py b/netbox/dcim/tests/test_views.py
index a327d6400..f5f14ba07 100644
--- a/netbox/dcim/tests/test_views.py
+++ b/netbox/dcim/tests/test_views.py
@@ -6,7 +6,7 @@ except ImportError:
     from backports.zoneinfo import ZoneInfo
 
 import yaml
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.contrib.contenttypes.models import ContentType
 from django.test import override_settings
 from django.urls import reverse
@@ -288,8 +288,8 @@ class RackReservationTestCase(ViewTestCases.PrimaryObjectViewTestCase):
     @classmethod
     def setUpTestData(cls):
 
-        user2 = User.objects.create_user(username='testuser2')
-        user3 = User.objects.create_user(username='testuser3')
+        user2 = get_user_model().objects.create_user(username='testuser2')
+        user3 = get_user_model().objects.create_user(username='testuser3')
 
         site = Site.objects.create(name='Site 1', slug='site-1')
 
diff --git a/netbox/extras/api/serializers.py b/netbox/extras/api/serializers.py
index cbe4ed56d..a02e933ba 100644
--- a/netbox/extras/api/serializers.py
+++ b/netbox/extras/api/serializers.py
@@ -1,4 +1,4 @@
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.contrib.contenttypes.models import ContentType
 from django.core.exceptions import ObjectDoesNotExist
 from rest_framework import serializers
@@ -256,7 +256,7 @@ class JournalEntrySerializer(NetBoxModelSerializer):
     assigned_object = serializers.SerializerMethodField(read_only=True)
     created_by = serializers.PrimaryKeyRelatedField(
         allow_null=True,
-        queryset=User.objects.all(),
+        queryset=get_user_model().objects.all(),
         required=False,
         default=serializers.CurrentUserDefault()
     )
diff --git a/netbox/extras/filtersets.py b/netbox/extras/filtersets.py
index 5253ae7b0..2cbaca5f7 100644
--- a/netbox/extras/filtersets.py
+++ b/netbox/extras/filtersets.py
@@ -1,5 +1,5 @@
 import django_filters
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.contrib.contenttypes.models import ContentType
 from django.db.models import Q
 from django.utils.translation import gettext as _
@@ -159,12 +159,12 @@ class SavedFilterFilterSet(BaseFilterSet):
     )
     content_types = ContentTypeFilter()
     user_id = django_filters.ModelMultipleChoiceFilter(
-        queryset=User.objects.all(),
+        queryset=get_user_model().objects.all(),
         label=_('User (ID)'),
     )
     user = django_filters.ModelMultipleChoiceFilter(
         field_name='user__username',
-        queryset=User.objects.all(),
+        queryset=get_user_model().objects.all(),
         to_field_name='username',
         label=_('User (name)'),
     )
@@ -223,12 +223,12 @@ class JournalEntryFilterSet(NetBoxModelFilterSet):
         queryset=ContentType.objects.all()
     )
     created_by_id = django_filters.ModelMultipleChoiceFilter(
-        queryset=User.objects.all(),
+        queryset=get_user_model().objects.all(),
         label=_('User (ID)'),
     )
     created_by = django_filters.ModelMultipleChoiceFilter(
         field_name='created_by__username',
-        queryset=User.objects.all(),
+        queryset=get_user_model().objects.all(),
         to_field_name='username',
         label=_('User (name)'),
     )
@@ -510,12 +510,12 @@ class ObjectChangeFilterSet(BaseFilterSet):
         queryset=ContentType.objects.all()
     )
     user_id = django_filters.ModelMultipleChoiceFilter(
-        queryset=User.objects.all(),
+        queryset=get_user_model().objects.all(),
         label=_('User (ID)'),
     )
     user = django_filters.ModelMultipleChoiceFilter(
         field_name='user__username',
-        queryset=User.objects.all(),
+        queryset=get_user_model().objects.all(),
         to_field_name='username',
         label=_('User name'),
     )
diff --git a/netbox/extras/forms/filtersets.py b/netbox/extras/forms/filtersets.py
index fae15d041..53de81ba2 100644
--- a/netbox/extras/forms/filtersets.py
+++ b/netbox/extras/forms/filtersets.py
@@ -1,5 +1,5 @@
 from django import forms
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.contrib.contenttypes.models import ContentType
 from django.utils.translation import gettext as _
 
@@ -385,7 +385,7 @@ class JournalEntryFilterForm(NetBoxModelFilterSetForm):
         widget=DateTimePicker()
     )
     created_by_id = DynamicModelMultipleChoiceField(
-        queryset=User.objects.all(),
+        queryset=get_user_model().objects.all(),
         required=False,
         label=_('User'),
         widget=APISelectMultiple(
@@ -429,7 +429,7 @@ class ObjectChangeFilterForm(SavedFiltersMixin, FilterForm):
         required=False
     )
     user_id = DynamicModelMultipleChoiceField(
-        queryset=User.objects.all(),
+        queryset=get_user_model().objects.all(),
         required=False,
         label=_('User'),
         widget=APISelectMultiple(
diff --git a/netbox/extras/management/commands/runscript.py b/netbox/extras/management/commands/runscript.py
index b42e9b47d..b086b542e 100644
--- a/netbox/extras/management/commands/runscript.py
+++ b/netbox/extras/management/commands/runscript.py
@@ -4,7 +4,7 @@ import sys
 import traceback
 import uuid
 
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.core.management.base import BaseCommand, CommandError
 from django.db import transaction
 
@@ -78,11 +78,11 @@ class Command(BaseCommand):
         # Take user from command line if provided and exists, other
         if options['user']:
             try:
-                user = User.objects.get(username=options['user'])
-            except User.DoesNotExist:
-                user = User.objects.filter(is_superuser=True).order_by('pk')[0]
+                user = get_user_model().objects.get(username=options['user'])
+            except get_user_model().DoesNotExist:
+                user = get_user_model().objects.filter(is_superuser=True).order_by('pk')[0]
         else:
-            user = User.objects.filter(is_superuser=True).order_by('pk')[0]
+            user = get_user_model().objects.filter(is_superuser=True).order_by('pk')[0]
 
         # Setup logging to Stdout
         formatter = logging.Formatter(f'[%(asctime)s][%(levelname)s] - %(message)s')
@@ -113,7 +113,7 @@ class Command(BaseCommand):
         job = Job.objects.create(
             object=module,
             name=script.name,
-            user=User.objects.filter(is_superuser=True).order_by('pk')[0],
+            user=get_user_model().objects.filter(is_superuser=True).order_by('pk')[0],
             job_id=uuid.uuid4()
         )
 
diff --git a/netbox/extras/models/change_logging.py b/netbox/extras/models/change_logging.py
index e2b118b84..b03ebf475 100644
--- a/netbox/extras/models/change_logging.py
+++ b/netbox/extras/models/change_logging.py
@@ -1,4 +1,4 @@
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.contrib.contenttypes.fields import GenericForeignKey
 from django.contrib.contenttypes.models import ContentType
 from django.db import models
@@ -24,7 +24,7 @@ class ObjectChange(models.Model):
         db_index=True
     )
     user = models.ForeignKey(
-        to=User,
+        to=get_user_model(),
         on_delete=models.SET_NULL,
         related_name='changes',
         blank=True,
diff --git a/netbox/extras/models/models.py b/netbox/extras/models/models.py
index 969fd22e0..bfb13fc71 100644
--- a/netbox/extras/models/models.py
+++ b/netbox/extras/models/models.py
@@ -3,7 +3,7 @@ import urllib.parse
 
 from django.conf import settings
 from django.contrib import admin
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.contrib.contenttypes.fields import GenericForeignKey
 from django.contrib.contenttypes.models import ContentType
 from django.core.cache import cache
@@ -419,7 +419,7 @@ class SavedFilter(CloningMixin, ExportTemplatesMixin, ChangeLoggedModel):
         blank=True
     )
     user = models.ForeignKey(
-        to=User,
+        to=get_user_model(),
         on_delete=models.SET_NULL,
         blank=True,
         null=True
@@ -560,7 +560,7 @@ class JournalEntry(CustomFieldsMixin, CustomLinksMixin, TagsMixin, ExportTemplat
         fk_field='assigned_object_id'
     )
     created_by = models.ForeignKey(
-        to=User,
+        to=get_user_model(),
         on_delete=models.SET_NULL,
         blank=True,
         null=True
diff --git a/netbox/extras/tests/test_api.py b/netbox/extras/tests/test_api.py
index b59481a36..73e07025d 100644
--- a/netbox/extras/tests/test_api.py
+++ b/netbox/extras/tests/test_api.py
@@ -1,6 +1,6 @@
 import datetime
 
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.contrib.contenttypes.models import ContentType
 from django.urls import reverse
 from django.utils.timezone import make_aware
@@ -396,7 +396,7 @@ class JournalEntryTest(APIViewTestCases.APIViewTestCase):
 
     @classmethod
     def setUpTestData(cls):
-        user = User.objects.first()
+        user = get_user_model().objects.first()
         site = Site.objects.create(name='Site 1', slug='site-1')
 
         journal_entries = (
diff --git a/netbox/extras/tests/test_filtersets.py b/netbox/extras/tests/test_filtersets.py
index e77afd20e..8c0173727 100644
--- a/netbox/extras/tests/test_filtersets.py
+++ b/netbox/extras/tests/test_filtersets.py
@@ -1,7 +1,7 @@
 import uuid
 from datetime import datetime, timezone
 
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.contrib.contenttypes.models import ContentType
 from django.test import TestCase
 
@@ -278,11 +278,11 @@ class SavedFilterTestCase(TestCase, BaseFilterSetTests):
         content_types = ContentType.objects.filter(model__in=['site', 'rack', 'device'])
 
         users = (
-            User(username='User 1'),
-            User(username='User 2'),
-            User(username='User 3'),
+            get_user_model()(username='User 1'),
+            get_user_model()(username='User 2'),
+            get_user_model()(username='User 3'),
         )
-        User.objects.bulk_create(users)
+        get_user_model().objects.bulk_create(users)
 
         saved_filters = (
             SavedFilter(
@@ -332,7 +332,7 @@ class SavedFilterTestCase(TestCase, BaseFilterSetTests):
         self.assertEqual(self.filterset(params, self.queryset).qs.count(), 1)
 
     def test_user(self):
-        users = User.objects.filter(username__startswith='User')
+        users = get_user_model().objects.filter(username__startswith='User')
         params = {'user': [users[0].username, users[1].username]}
         self.assertEqual(self.filterset(params, self.queryset).qs.count(), 2)
         params = {'user_id': [users[0].pk, users[1].pk]}
@@ -493,11 +493,11 @@ class JournalEntryTestCase(TestCase, ChangeLoggedFilterSetTests):
         Rack.objects.bulk_create(racks)
 
         users = (
-            User(username='Alice'),
-            User(username='Bob'),
-            User(username='Charlie'),
+            get_user_model()(username='Alice'),
+            get_user_model()(username='Bob'),
+            get_user_model()(username='Charlie'),
         )
-        User.objects.bulk_create(users)
+        get_user_model().objects.bulk_create(users)
 
         journal_entries = (
             JournalEntry(
@@ -540,7 +540,7 @@ class JournalEntryTestCase(TestCase, ChangeLoggedFilterSetTests):
         JournalEntry.objects.bulk_create(journal_entries)
 
     def test_created_by(self):
-        users = User.objects.filter(username__in=['Alice', 'Bob'])
+        users = get_user_model().objects.filter(username__in=['Alice', 'Bob'])
         params = {'created_by': [users[0].username, users[1].username]}
         self.assertEqual(self.filterset(params, self.queryset).qs.count(), 4)
         params = {'created_by_id': [users[0].pk, users[1].pk]}
@@ -865,11 +865,11 @@ class ObjectChangeTestCase(TestCase, BaseFilterSetTests):
     @classmethod
     def setUpTestData(cls):
         users = (
-            User(username='user1'),
-            User(username='user2'),
-            User(username='user3'),
+            get_user_model()(username='user1'),
+            get_user_model()(username='user2'),
+            get_user_model()(username='user3'),
         )
-        User.objects.bulk_create(users)
+        get_user_model().objects.bulk_create(users)
 
         site = Site.objects.create(name='Test Site 1', slug='test-site-1')
         ipaddress = IPAddress.objects.create(address='192.0.2.1/24')
@@ -933,7 +933,7 @@ class ObjectChangeTestCase(TestCase, BaseFilterSetTests):
         ObjectChange.objects.bulk_create(object_changes)
 
     def test_user(self):
-        params = {'user_id': User.objects.filter(username__in=['user1', 'user2']).values_list('pk', flat=True)}
+        params = {'user_id': get_user_model().objects.filter(username__in=['user1', 'user2']).values_list('pk', flat=True)}
         self.assertEqual(self.filterset(params, self.queryset).qs.count(), 4)
         params = {'user': ['user1', 'user2']}
         self.assertEqual(self.filterset(params, self.queryset).qs.count(), 4)
diff --git a/netbox/extras/tests/test_views.py b/netbox/extras/tests/test_views.py
index ef8e87489..1a3ce8923 100644
--- a/netbox/extras/tests/test_views.py
+++ b/netbox/extras/tests/test_views.py
@@ -1,7 +1,7 @@
 import urllib.parse
 import uuid
 
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.contrib.contenttypes.models import ContentType
 from django.urls import reverse
 
@@ -115,11 +115,11 @@ class SavedFilterTestCase(ViewTestCases.PrimaryObjectViewTestCase):
         site_ct = ContentType.objects.get_for_model(Site)
 
         users = (
-            User(username='User 1'),
-            User(username='User 2'),
-            User(username='User 3'),
+            get_user_model()(username='User 1'),
+            get_user_model()(username='User 2'),
+            get_user_model()(username='User 3'),
         )
-        User.objects.bulk_create(users)
+        get_user_model().objects.bulk_create(users)
 
         saved_filters = (
             SavedFilter(
@@ -412,7 +412,7 @@ class ObjectChangeTestCase(TestCase):
         site.save()
 
         # Create three ObjectChanges
-        user = User.objects.create_user(username='testuser2')
+        user = get_user_model().objects.create_user(username='testuser2')
         for i in range(1, 4):
             oc = site.to_objectchange(action=ObjectChangeActionChoices.ACTION_UPDATE)
             oc.user = user
@@ -423,7 +423,7 @@ class ObjectChangeTestCase(TestCase):
 
         url = reverse('extras:objectchange_list')
         params = {
-            "user": User.objects.first().pk,
+            "user": get_user_model().objects.first().pk,
         }
 
         response = self.client.get('{}?{}'.format(url, urllib.parse.urlencode(params)))
@@ -452,7 +452,7 @@ class JournalEntryTestCase(
         site_ct = ContentType.objects.get_for_model(Site)
 
         site = Site.objects.create(name='Site 1', slug='site-1')
-        user = User.objects.create(username='User 1')
+        user = get_user_model().objects.create(username='User 1')
 
         JournalEntry.objects.bulk_create((
             JournalEntry(assigned_object=site, created_by=user, comments='First entry'),
diff --git a/netbox/netbox/tests/test_authentication.py b/netbox/netbox/tests/test_authentication.py
index 4e46996b5..d14cc6973 100644
--- a/netbox/netbox/tests/test_authentication.py
+++ b/netbox/netbox/tests/test_authentication.py
@@ -1,7 +1,8 @@
 import datetime
 
 from django.conf import settings
-from django.contrib.auth.models import Group, User
+from django.contrib.auth import get_user_model
+from django.contrib.auth.models import Group
 from django.contrib.contenttypes.models import ContentType
 from django.test import Client
 from django.test.utils import override_settings
@@ -87,7 +88,7 @@ class ExternalAuthenticationTestCase(TestCase):
 
     @classmethod
     def setUpTestData(cls):
-        cls.user = User.objects.create(username='remoteuser1')
+        cls.user = get_user_model().objects.create(username='remoteuser1')
 
     def setUp(self):
         self.client = Client()
@@ -169,7 +170,7 @@ class ExternalAuthenticationTestCase(TestCase):
         response = self.client.get(reverse('home'), follow=True, **headers)
         self.assertEqual(response.status_code, 200)
 
-        self.user = User.objects.get(username='remoteuser1')
+        self.user = get_user_model().objects.get(username='remoteuser1')
         self.assertEqual(self.user.first_name, "John", msg='User first name was not updated')
         self.assertEqual(self.user.last_name, "Smith", msg='User last name was not updated')
         self.assertEqual(self.user.email, "johnsmith@example.com", msg='User email was not updated')
@@ -195,7 +196,7 @@ class ExternalAuthenticationTestCase(TestCase):
         self.assertEqual(response.status_code, 200)
 
         # Local user should have been automatically created
-        new_user = User.objects.get(username='remoteuser2')
+        new_user = get_user_model().objects.get(username='remoteuser2')
         self.assertEqual(int(self.client.session.get(
             '_auth_user_id')), new_user.pk, msg='Authentication failed')
 
@@ -230,7 +231,7 @@ class ExternalAuthenticationTestCase(TestCase):
         response = self.client.get(reverse('home'), follow=True, **headers)
         self.assertEqual(response.status_code, 200)
 
-        new_user = User.objects.get(username='remoteuser2')
+        new_user = get_user_model().objects.get(username='remoteuser2')
         self.assertEqual(int(self.client.session.get(
             '_auth_user_id')), new_user.pk, msg='Authentication failed')
         self.assertListEqual(
@@ -262,7 +263,7 @@ class ExternalAuthenticationTestCase(TestCase):
         response = self.client.get(reverse('home'), follow=True, **headers)
         self.assertEqual(response.status_code, 200)
 
-        new_user = User.objects.get(username='remoteuser2')
+        new_user = get_user_model().objects.get(username='remoteuser2')
         self.assertEqual(int(self.client.session.get(
             '_auth_user_id')), new_user.pk, msg='Authentication failed')
         self.assertTrue(new_user.has_perms(
@@ -302,7 +303,7 @@ class ExternalAuthenticationTestCase(TestCase):
         response = self.client.get(reverse('home'), follow=True, **headers)
         self.assertEqual(response.status_code, 200)
 
-        new_user = User.objects.get(username='remoteuser2')
+        new_user = get_user_model().objects.get(username='remoteuser2')
         self.assertEqual(int(self.client.session.get(
             '_auth_user_id')), new_user.pk, msg='Authentication failed')
         self.assertListEqual(
@@ -343,7 +344,7 @@ class ExternalAuthenticationTestCase(TestCase):
         response = self.client.get(reverse("home"), follow=True, **headers)
         self.assertEqual(response.status_code, 200)
 
-        new_user = User.objects.get(username="remoteuser2")
+        new_user = get_user_model().objects.get(username="remoteuser2")
         self.assertEqual(
             int(self.client.session.get("_auth_user_id")),
             new_user.pk,
@@ -389,7 +390,7 @@ class ExternalAuthenticationTestCase(TestCase):
         response = self.client.get(reverse('home'), follow=True, **headers)
         self.assertEqual(response.status_code, 200)
 
-        new_user = User.objects.get(username='remoteuser2')
+        new_user = get_user_model().objects.get(username='remoteuser2')
         self.assertEqual(int(self.client.session.get(
             '_auth_user_id')), new_user.pk, msg='Authentication failed')
         self.assertListEqual(
@@ -428,7 +429,7 @@ class ObjectPermissionAPIViewTestCase(TestCase):
         """
         Create a test user and token for API calls.
         """
-        self.user = User.objects.create(username='testuser')
+        self.user = get_user_model().objects.create(username='testuser')
         self.token = Token.objects.create(user=self.user)
         self.header = {'HTTP_AUTHORIZATION': 'Token {}'.format(self.token.key)}
 
diff --git a/netbox/users/api/nested_serializers.py b/netbox/users/api/nested_serializers.py
index 3510184ae..5e15fa41a 100644
--- a/netbox/users/api/nested_serializers.py
+++ b/netbox/users/api/nested_serializers.py
@@ -1,4 +1,5 @@
-from django.contrib.auth.models import Group, User
+from django.contrib.auth import get_user_model
+from django.contrib.auth.models import Group
 from django.contrib.contenttypes.models import ContentType
 from drf_spectacular.utils import extend_schema_field
 from drf_spectacular.types import OpenApiTypes
@@ -28,7 +29,7 @@ class NestedUserSerializer(WritableNestedSerializer):
     url = serializers.HyperlinkedIdentityField(view_name='users-api:user-detail')
 
     class Meta:
-        model = User
+        model = get_user_model()
         fields = ['id', 'url', 'display', 'username']
 
     @extend_schema_field(OpenApiTypes.STR)
diff --git a/netbox/users/api/serializers.py b/netbox/users/api/serializers.py
index 1b975791f..1f4bf4ea0 100644
--- a/netbox/users/api/serializers.py
+++ b/netbox/users/api/serializers.py
@@ -1,5 +1,6 @@
 from django.conf import settings
-from django.contrib.auth.models import Group, User
+from django.contrib.auth import get_user_model
+from django.contrib.auth.models import Group
 from django.contrib.contenttypes.models import ContentType
 from drf_spectacular.utils import extend_schema_field
 from drf_spectacular.types import OpenApiTypes
@@ -30,7 +31,7 @@ class UserSerializer(ValidatedModelSerializer):
     )
 
     class Meta:
-        model = User
+        model = get_user_model()
         fields = (
             'id', 'url', 'display', 'username', 'password', 'first_name', 'last_name', 'email', 'is_staff', 'is_active',
             'date_joined', 'groups',
@@ -124,7 +125,7 @@ class ObjectPermissionSerializer(ValidatedModelSerializer):
         many=True
     )
     users = SerializedPKRelatedField(
-        queryset=User.objects.all(),
+        queryset=get_user_model().objects.all(),
         serializer=NestedUserSerializer,
         required=False,
         many=True
diff --git a/netbox/users/api/views.py b/netbox/users/api/views.py
index 04b3ae336..4a8e1b154 100644
--- a/netbox/users/api/views.py
+++ b/netbox/users/api/views.py
@@ -1,5 +1,6 @@
 from django.contrib.auth import authenticate
-from django.contrib.auth.models import Group, User
+from django.contrib.auth import get_user_model
+from django.contrib.auth.models import Group
 from django.db.models import Count
 from drf_spectacular.utils import extend_schema
 from drf_spectacular.types import OpenApiTypes
@@ -32,7 +33,7 @@ class UsersRootView(APIRootView):
 #
 
 class UserViewSet(NetBoxModelViewSet):
-    queryset = RestrictedQuerySet(model=User).prefetch_related('groups').order_by('username')
+    queryset = RestrictedQuerySet(model=get_user_model()).prefetch_related('groups').order_by('username')
     serializer_class = serializers.UserSerializer
     filterset_class = filtersets.UserFilterSet
 
diff --git a/netbox/users/filtersets.py b/netbox/users/filtersets.py
index 4ae9df89a..44ad98cc2 100644
--- a/netbox/users/filtersets.py
+++ b/netbox/users/filtersets.py
@@ -1,5 +1,6 @@
 import django_filters
-from django.contrib.auth.models import Group, User
+from django.contrib.auth import get_user_model
+from django.contrib.auth.models import Group
 from django.db.models import Q
 from django.utils.translation import gettext as _
 
@@ -47,7 +48,7 @@ class UserFilterSet(BaseFilterSet):
     )
 
     class Meta:
-        model = User
+        model = get_user_model()
         fields = ['id', 'username', 'first_name', 'last_name', 'email', 'is_staff', 'is_active']
 
     def search(self, queryset, name, value):
@@ -68,12 +69,12 @@ class TokenFilterSet(BaseFilterSet):
     )
     user_id = django_filters.ModelMultipleChoiceFilter(
         field_name='user',
-        queryset=User.objects.all(),
+        queryset=get_user_model().objects.all(),
         label=_('User'),
     )
     user = django_filters.ModelMultipleChoiceFilter(
         field_name='user__username',
-        queryset=User.objects.all(),
+        queryset=get_user_model().objects.all(),
         to_field_name='username',
         label=_('User (name)'),
     )
@@ -116,12 +117,12 @@ class ObjectPermissionFilterSet(BaseFilterSet):
     )
     user_id = django_filters.ModelMultipleChoiceFilter(
         field_name='users',
-        queryset=User.objects.all(),
+        queryset=get_user_model().objects.all(),
         label=_('User'),
     )
     user = django_filters.ModelMultipleChoiceFilter(
         field_name='users__username',
-        queryset=User.objects.all(),
+        queryset=get_user_model().objects.all(),
         to_field_name='username',
         label=_('User (name)'),
     )
diff --git a/netbox/users/graphql/schema.py b/netbox/users/graphql/schema.py
index 3b04d8418..f033a535a 100644
--- a/netbox/users/graphql/schema.py
+++ b/netbox/users/graphql/schema.py
@@ -1,6 +1,7 @@
 import graphene
 
-from django.contrib.auth.models import Group, User
+from django.contrib.auth import get_user_model
+from django.contrib.auth.models import Group
 from netbox.graphql.fields import ObjectField, ObjectListField
 from .types import *
 from utilities.graphql_optimizer import gql_query_optimizer
@@ -17,4 +18,4 @@ class UsersQuery(graphene.ObjectType):
     user_list = ObjectListField(UserType)
 
     def resolve_user_list(root, info, **kwargs):
-        return gql_query_optimizer(User.objects.all(), info)
+        return gql_query_optimizer(get_user_model().objects.all(), info)
diff --git a/netbox/users/graphql/types.py b/netbox/users/graphql/types.py
index d948686c6..4254f1791 100644
--- a/netbox/users/graphql/types.py
+++ b/netbox/users/graphql/types.py
@@ -1,4 +1,5 @@
-from django.contrib.auth.models import Group, User
+from django.contrib.auth import get_user_model
+from django.contrib.auth.models import Group
 from graphene_django import DjangoObjectType
 
 from users import filtersets
@@ -25,7 +26,7 @@ class GroupType(DjangoObjectType):
 class UserType(DjangoObjectType):
 
     class Meta:
-        model = User
+        model = get_user_model()
         fields = (
             'id', 'username', 'password', 'first_name', 'last_name', 'email', 'is_staff', 'is_active', 'date_joined',
             'groups',
@@ -34,4 +35,4 @@ class UserType(DjangoObjectType):
 
     @classmethod
     def get_queryset(cls, queryset, info):
-        return RestrictedQuerySet(model=User).restrict(info.context.user, 'view')
+        return RestrictedQuerySet(model=get_user_model()).restrict(info.context.user, 'view')
diff --git a/netbox/users/tests/test_api.py b/netbox/users/tests/test_api.py
index 281f656d2..7005db04e 100644
--- a/netbox/users/tests/test_api.py
+++ b/netbox/users/tests/test_api.py
@@ -1,4 +1,5 @@
-from django.contrib.auth.models import Group, User
+from django.contrib.auth import get_user_model
+from django.contrib.auth.models import Group
 from django.contrib.contenttypes.models import ContentType
 from django.urls import reverse
 
@@ -18,7 +19,7 @@ class AppTest(APITestCase):
 
 
 class UserTest(APIViewTestCases.APIViewTestCase):
-    model = User
+    model = get_user_model()
     view_namespace = 'users'
     brief_fields = ['display', 'id', 'url', 'username']
     validation_excluded_fields = ['password']
@@ -44,11 +45,11 @@ class UserTest(APIViewTestCases.APIViewTestCase):
     def setUpTestData(cls):
 
         users = (
-            User(username='User_1', password='password1'),
-            User(username='User_2', password='password2'),
-            User(username='User_3', password='password3'),
+            get_user_model()(username='User_1', password='password1'),
+            get_user_model()(username='User_2', password='password2'),
+            get_user_model()(username='User_3', password='password3'),
         )
-        User.objects.bulk_create(users)
+        get_user_model().objects.bulk_create(users)
 
 
 class GroupTest(APIViewTestCases.APIViewTestCase):
@@ -130,7 +131,7 @@ class TokenTest(
             'username': 'user1',
             'password': 'abc123',
         }
-        user = User.objects.create_user(**data)
+        user = get_user_model().objects.create_user(**data)
         url = reverse('users-api:token_provision')
 
         response = self.client.post(url, data, format='json', **self.header)
@@ -158,7 +159,7 @@ class TokenTest(
         Test provisioning a Token for a different User with & without the grant_token permission.
         """
         self.add_permissions('users.add_token')
-        user2 = User.objects.create_user(username='testuser2')
+        user2 = get_user_model().objects.create_user(username='testuser2')
         data = {
             'user': user2.id,
         }
@@ -196,11 +197,11 @@ class ObjectPermissionTest(
         Group.objects.bulk_create(groups)
 
         users = (
-            User(username='User 1', is_active=True),
-            User(username='User 2', is_active=True),
-            User(username='User 3', is_active=True),
+            get_user_model()(username='User 1', is_active=True),
+            get_user_model()(username='User 2', is_active=True),
+            get_user_model()(username='User 3', is_active=True),
         )
-        User.objects.bulk_create(users)
+        get_user_model().objects.bulk_create(users)
 
         object_type = ContentType.objects.get(app_label='dcim', model='device')
 
diff --git a/netbox/users/tests/test_filtersets.py b/netbox/users/tests/test_filtersets.py
index 33ed7e7ba..aacba90e9 100644
--- a/netbox/users/tests/test_filtersets.py
+++ b/netbox/users/tests/test_filtersets.py
@@ -1,6 +1,7 @@
 import datetime
 
-from django.contrib.auth.models import Group, User
+from django.contrib.auth import get_user_model
+from django.contrib.auth.models import Group
 from django.contrib.contenttypes.models import ContentType
 from django.test import TestCase
 from django.utils.timezone import make_aware
@@ -11,7 +12,7 @@ from utilities.testing import BaseFilterSetTests
 
 
 class UserTestCase(TestCase, BaseFilterSetTests):
-    queryset = User.objects.all()
+    queryset = get_user_model().objects.all()
     filterset = filtersets.UserFilterSet
 
     @classmethod
@@ -25,39 +26,39 @@ class UserTestCase(TestCase, BaseFilterSetTests):
         Group.objects.bulk_create(groups)
 
         users = (
-            User(
+            get_user_model()(
                 username='User1',
                 first_name='Hank',
                 last_name='Hill',
                 email='hank@stricklandpropane.com',
                 is_staff=True
             ),
-            User(
+            get_user_model()(
                 username='User2',
                 first_name='Dale',
                 last_name='Gribble',
                 email='dale@dalesdeadbug.com'
             ),
-            User(
+            get_user_model()(
                 username='User3',
                 first_name='Bill',
                 last_name='Dauterive',
                 email='bill.dauterive@army.mil'
             ),
-            User(
+            get_user_model()(
                 username='User4',
                 first_name='Jeff',
                 last_name='Boomhauer',
                 email='boomhauer@dangolemail.com'
             ),
-            User(
+            get_user_model()(
                 username='User5',
                 first_name='Debbie',
                 last_name='Grund',
                 is_active=False
             )
         )
-        User.objects.bulk_create(users)
+        get_user_model().objects.bulk_create(users)
 
         users[0].groups.set([groups[0]])
         users[1].groups.set([groups[1]])
@@ -129,11 +130,11 @@ class ObjectPermissionTestCase(TestCase, BaseFilterSetTests):
         Group.objects.bulk_create(groups)
 
         users = (
-            User(username='User1'),
-            User(username='User2'),
-            User(username='User3'),
+            get_user_model()(username='User1'),
+            get_user_model()(username='User2'),
+            get_user_model()(username='User3'),
         )
-        User.objects.bulk_create(users)
+        get_user_model().objects.bulk_create(users)
 
         object_types = (
             ContentType.objects.get(app_label='dcim', model='site'),
@@ -172,7 +173,7 @@ class ObjectPermissionTestCase(TestCase, BaseFilterSetTests):
         self.assertEqual(self.filterset(params, self.queryset).qs.count(), 2)
 
     def test_user(self):
-        users = User.objects.filter(username__in=['User1', 'User2'])
+        users = get_user_model().objects.filter(username__in=['User1', 'User2'])
         params = {'user_id': [users[0].pk, users[1].pk]}
         self.assertEqual(self.filterset(params, self.queryset).qs.count(), 2)
         params = {'user': [users[0].username, users[1].username]}
@@ -196,11 +197,11 @@ class TokenTestCase(TestCase, BaseFilterSetTests):
     def setUpTestData(cls):
 
         users = (
-            User(username='User1'),
-            User(username='User2'),
-            User(username='User3'),
+            get_user_model()(username='User1'),
+            get_user_model()(username='User2'),
+            get_user_model()(username='User3'),
         )
-        User.objects.bulk_create(users)
+        get_user_model().objects.bulk_create(users)
 
         future_date = make_aware(datetime.datetime(3000, 1, 1))
         past_date = make_aware(datetime.datetime(2000, 1, 1))
@@ -212,7 +213,7 @@ class TokenTestCase(TestCase, BaseFilterSetTests):
         Token.objects.bulk_create(tokens)
 
     def test_user(self):
-        users = User.objects.order_by('id')[:2]
+        users = get_user_model().objects.order_by('id')[:2]
         params = {'user_id': [users[0].pk, users[1].pk]}
         self.assertEqual(self.filterset(params, self.queryset).qs.count(), 2)
         params = {'user': [users[0].username, users[1].username]}
diff --git a/netbox/users/tests/test_models.py b/netbox/users/tests/test_models.py
index 7a2337f33..27146c71b 100644
--- a/netbox/users/tests/test_models.py
+++ b/netbox/users/tests/test_models.py
@@ -1,4 +1,4 @@
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.test import TestCase
 
 
@@ -7,7 +7,7 @@ class UserConfigTest(TestCase):
     @classmethod
     def setUpTestData(cls):
 
-        user = User.objects.create_user(username='testuser')
+        user = get_user_model().objects.create_user(username='testuser')
         user.config.data = {
             'a': True,
             'b': {
@@ -29,7 +29,7 @@ class UserConfigTest(TestCase):
         user.config.save()
 
     def test_get(self):
-        userconfig = User.objects.get(username='testuser').config
+        userconfig = get_user_model().objects.get(username='testuser').config
 
         # Retrieve root and nested values
         self.assertEqual(userconfig.get('a'), True)
@@ -49,7 +49,7 @@ class UserConfigTest(TestCase):
         self.assertEqual(userconfig.get('b.foo.x.invalid', 'DEFAULT'), 'DEFAULT')
 
     def test_all(self):
-        userconfig = User.objects.get(username='testuser').config
+        userconfig = get_user_model().objects.get(username='testuser').config
         flattened_data = {
             'a': True,
             'b.foo': 101,
@@ -63,7 +63,7 @@ class UserConfigTest(TestCase):
         self.assertEqual(userconfig.all(), flattened_data)
 
     def test_set(self):
-        userconfig = User.objects.get(username='testuser').config
+        userconfig = get_user_model().objects.get(username='testuser').config
 
         # Overwrite existing values
         userconfig.set('a', 'abc')
@@ -92,7 +92,7 @@ class UserConfigTest(TestCase):
             userconfig.set('a.x', 1)
 
     def test_clear(self):
-        userconfig = User.objects.get(username='testuser').config
+        userconfig = get_user_model().objects.get(username='testuser').config
 
         # Clear existing values
         userconfig.clear('a')
diff --git a/netbox/users/tests/test_preferences.py b/netbox/users/tests/test_preferences.py
index f1e947d67..2776e6344 100644
--- a/netbox/users/tests/test_preferences.py
+++ b/netbox/users/tests/test_preferences.py
@@ -1,4 +1,4 @@
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.test import override_settings
 from django.test.client import RequestFactory
 from django.urls import reverse
@@ -39,7 +39,7 @@ class UserPreferencesTest(TestCase):
 
     @override_settings(DEFAULT_USER_PREFERENCES=DEFAULT_USER_PREFERENCES)
     def test_default_preferences(self):
-        user = User.objects.create(username='User 1')
+        user = get_user_model().objects.create(username='User 1')
         userconfig = user.config
 
         self.assertEqual(userconfig.data, DEFAULT_USER_PREFERENCES)
diff --git a/netbox/utilities/testing/api.py b/netbox/utilities/testing/api.py
index 7f24c86b8..816037b0c 100644
--- a/netbox/utilities/testing/api.py
+++ b/netbox/utilities/testing/api.py
@@ -2,7 +2,7 @@ import inspect
 import json
 
 from django.conf import settings
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.contrib.contenttypes.models import ContentType
 from django.urls import reverse
 from django.test import override_settings
@@ -45,7 +45,7 @@ class APITestCase(ModelTestCase):
         Create a user and token for API calls.
         """
         # Create the test user and assign permissions
-        self.user = User.objects.create_user(username='testuser')
+        self.user = get_user_model().objects.create_user(username='testuser')
         self.add_permissions(*self.user_permissions)
         self.token = Token.objects.create(user=self.user)
         self.header = {'HTTP_AUTHORIZATION': f'Token {self.token.key}'}
diff --git a/netbox/utilities/testing/base.py b/netbox/utilities/testing/base.py
index 04ceca1e2..76a9fac06 100644
--- a/netbox/utilities/testing/base.py
+++ b/netbox/utilities/testing/base.py
@@ -1,6 +1,6 @@
 import json
 
-from django.contrib.auth.models import User
+from django.contrib.auth import get_user_model
 from django.contrib.contenttypes.models import ContentType
 from django.contrib.postgres.fields import ArrayField
 from django.core.exceptions import FieldDoesNotExist
@@ -27,7 +27,7 @@ class TestCase(_TestCase):
     def setUp(self):
 
         # Create the test user and assign permissions
-        self.user = User.objects.create_user(username='testuser')
+        self.user = get_user_model().objects.create_user(username='testuser')
         self.add_permissions(*self.user_permissions)
 
         # Initialize the test client
diff --git a/netbox/utilities/testing/utils.py b/netbox/utilities/testing/utils.py
index 52ccd002d..87fc3319c 100644
--- a/netbox/utilities/testing/utils.py
+++ b/netbox/utilities/testing/utils.py
@@ -2,7 +2,8 @@ import logging
 import re
 from contextlib import contextmanager
 
-from django.contrib.auth.models import Permission, User
+from django.contrib.auth import get_user_model
+from django.contrib.auth.models import Permission
 from django.utils.text import slugify
 
 from dcim.models import Device, DeviceRole, DeviceType, Manufacturer, Site
@@ -63,7 +64,7 @@ def create_test_user(username='testuser', permissions=None):
     """
     Create a User with the given permissions.
     """
-    user = User.objects.create_user(username=username)
+    user = get_user_model().objects.create_user(username=username)
     if permissions is None:
         permissions = ()
     for perm_name in permissions: