diff --git a/greg/api/serializers/role.py b/greg/api/serializers/role.py
index 06f9eaf4cfaaf2a35deb3c459f38522e141f1c58..3fd2d03d884330f481e529919126ee6350221e2f 100644
--- a/greg/api/serializers/role.py
+++ b/greg/api/serializers/role.py
@@ -1,9 +1,9 @@
-from rest_framework import fields, serializers
+from rest_framework.serializers import ModelSerializer
 
 from greg.models import Role
 
 
-class RoleSerializer(serializers.ModelSerializer):
+class RoleSerializer(ModelSerializer):
     class Meta:
         model = Role
         fields = "__all__"
diff --git a/greg/api/views/role.py b/greg/api/views/role.py
index 80de78c392220b921e364c6bf902cbbf4f24bb97..fbfce2fd85e3b515ccbce00cbe9778aa3b7d8994 100644
--- a/greg/api/views/role.py
+++ b/greg/api/views/role.py
@@ -1,7 +1,4 @@
-from django_filters import rest_framework as filters
-
 from rest_framework import viewsets
-from rest_framework.schemas.openapi import AutoSchema
 
 from greg.api.pagination import PrimaryKeyCursorPagination
 from greg.api.serializers.role import RoleSerializer
diff --git a/greg/apps.py b/greg/apps.py
index 6d47fa17fa0a439edb19333cbd8646162973e176..d3307bd4c24714e32a3e648524e5a9724a5a8a5a 100644
--- a/greg/apps.py
+++ b/greg/apps.py
@@ -7,4 +7,4 @@ class GregAppConfig(AppConfig):
     verbose_name = _("Greg")
 
     def ready(self):
-        import greg.signals
+        import greg.signals  # pylint: disable=unused-import
diff --git a/greg/tests/test_api_person.py b/greg/tests/test_api_person.py
index 6a40baf6ec2bedfb0812c45184781b0a2cbdf085..7f66557ab949b611297d75d8999b9e70a2dd1a5e 100644
--- a/greg/tests/test_api_person.py
+++ b/greg/tests/test_api_person.py
@@ -1,12 +1,13 @@
 from django.contrib.auth import get_user_model
-from django.test import TestCase
-from django.utils.dateparse import parse_datetime
 from rest_framework import status
 from rest_framework.authtoken.models import Token
 from rest_framework.reverse import reverse
-from rest_framework.test import APIClient, APITestCase
+from rest_framework.test import (
+    APIClient,
+    APITestCase,
+)
 
-from greg.models import Person, PersonRole, Role
+from greg.models import Person
 
 
 class GregAPITestCase(APITestCase):
diff --git a/greg/urls.py b/greg/urls.py
index 44f0031d68b75dc8ea3a23672dfff2e6b88b321a..aae406a6ca1128569d8b7efd1140e97e1b912da4 100644
--- a/greg/urls.py
+++ b/greg/urls.py
@@ -14,7 +14,6 @@ Including another URLconf
     2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
 """
 from typing import List
-from django.contrib import admin
 from django.urls import path, include
 from django.urls.resolvers import URLResolver