diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index af0b3f39..37cf9a8b 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -24,3 +24,9 @@ repos:
   rev: 4.0.1
   hooks:
     - id: flake8
+
+-   repo: https://github.com/asottile/pyupgrade
+    rev: v2.31.0
+    hooks:
+    -   id: pyupgrade
+        args: [--py37-plus]
diff --git a/djoser/conf.py b/djoser/conf.py
index 2c53c387..dc85a039 100644
--- a/djoser/conf.py
+++ b/djoser/conf.py
@@ -22,7 +22,7 @@ def __getattribute__(self, item):
                 val = [import_string(v) if isinstance(v, str) else v for v in val]
             self[item] = val
         except KeyError:
-            val = super(ObjDict, self).__getattribute__(item)
+            val = super().__getattribute__(item)
 
         return val
 
diff --git a/djoser/constants.py b/djoser/constants.py
index 02949e13..ef1209c0 100644
--- a/djoser/constants.py
+++ b/djoser/constants.py
@@ -1,7 +1,7 @@
 from django.utils.translation import gettext_lazy as _
 
 
-class Messages(object):
+class Messages:
     INVALID_CREDENTIALS_ERROR = _("Unable to log in with provided credentials.")
     INACTIVE_ACCOUNT_ERROR = _("User account is disabled.")
     INVALID_TOKEN_ERROR = _("Invalid token for given user.")
diff --git a/djoser/serializers.py b/djoser/serializers.py
index ad7faa86..805bf01c 100644
--- a/djoser/serializers.py
+++ b/djoser/serializers.py
@@ -262,14 +262,12 @@ def __init__(self, *args, **kwargs):
         super().__init__(*args, **kwargs)
         self.username_field = settings.LOGIN_FIELD
         self._default_username_field = User.USERNAME_FIELD
-        self.fields["new_{}".format(self.username_field)] = self.fields.pop(
-            self.username_field
-        )
+        self.fields[f"new_{self.username_field}"] = self.fields.pop(self.username_field)
 
     def save(self, **kwargs):
         if self.username_field != self._default_username_field:
             kwargs[User.USERNAME_FIELD] = self.validated_data.get(
-                "new_{}".format(self.username_field)
+                f"new_{self.username_field}"
             )
         return super().save(**kwargs)
 
@@ -288,7 +286,7 @@ def __init__(self, *args, **kwargs):
     def validate(self, attrs):
         attrs = super().validate(attrs)
         new_username = attrs[settings.LOGIN_FIELD]
-        if new_username != attrs["re_new_{}".format(settings.LOGIN_FIELD)]:
+        if new_username != attrs[f"re_new_{settings.LOGIN_FIELD}"]:
             self.fail("username_mismatch")
         else:
             return attrs
diff --git a/djoser/utils.py b/djoser/utils.py
index 8de2de10..bd3fe633 100644
--- a/djoser/utils.py
+++ b/djoser/utils.py
@@ -31,7 +31,7 @@ def logout_user(request):
         logout(request)
 
 
-class ActionViewMixin(object):
+class ActionViewMixin:
     def post(self, request, **kwargs):
         serializer = self.get_serializer(data=request.data)
         serializer.is_valid(raise_exception=True)
diff --git a/djoser/views.py b/djoser/views.py
index f4915662..2e5f6fa0 100644
--- a/djoser/views.py
+++ b/djoser/views.py
@@ -262,7 +262,7 @@ def reset_password_confirm(self, request, *args, **kwargs):
             settings.EMAIL.password_changed_confirmation(self.request, context).send(to)
         return Response(status=status.HTTP_204_NO_CONTENT)
 
-    @action(["post"], detail=False, url_path="set_{}".format(User.USERNAME_FIELD))
+    @action(["post"], detail=False, url_path=f"set_{User.USERNAME_FIELD}")
     def set_username(self, request, *args, **kwargs):
         serializer = self.get_serializer(data=request.data)
         serializer.is_valid(raise_exception=True)
@@ -277,7 +277,7 @@ def set_username(self, request, *args, **kwargs):
             settings.EMAIL.username_changed_confirmation(self.request, context).send(to)
         return Response(status=status.HTTP_204_NO_CONTENT)
 
-    @action(["post"], detail=False, url_path="reset_{}".format(User.USERNAME_FIELD))
+    @action(["post"], detail=False, url_path=f"reset_{User.USERNAME_FIELD}")
     def reset_username(self, request, *args, **kwargs):
         serializer = self.get_serializer(data=request.data)
         serializer.is_valid(raise_exception=True)
@@ -290,9 +290,7 @@ def reset_username(self, request, *args, **kwargs):
 
         return Response(status=status.HTTP_204_NO_CONTENT)
 
-    @action(
-        ["post"], detail=False, url_path="reset_{}_confirm".format(User.USERNAME_FIELD)
-    )
+    @action(["post"], detail=False, url_path=f"reset_{User.USERNAME_FIELD}_confirm")
     def reset_username_confirm(self, request, *args, **kwargs):
         serializer = self.get_serializer(data=request.data)
         serializer.is_valid(raise_exception=True)
diff --git a/djoser/webauthn/serializers.py b/djoser/webauthn/serializers.py
index 6cebea75..7304be23 100644
--- a/djoser/webauthn/serializers.py
+++ b/djoser/webauthn/serializers.py
@@ -1,5 +1,4 @@
 from django.contrib.auth import get_user_model
-from django.db import IntegrityError, transaction
 from rest_framework import serializers
 
 from djoser.conf import settings
@@ -29,9 +28,7 @@ def create(self, validated_data):
 
     def validate_username(self, username):
         if User.objects.filter(username=username).exists():
-            raise serializers.ValidationError(
-                "User {} already exists.".format(username)
-            )
+            raise serializers.ValidationError(f"User {username} already exists.")
         return username
 
 
diff --git a/djoser/webauthn/urls.py b/djoser/webauthn/urls.py
index 698ef5b1..0f9c4095 100644
--- a/djoser/webauthn/urls.py
+++ b/djoser/webauthn/urls.py
@@ -1,18 +1,20 @@
-from django.conf.urls import url
+from django.urls import re_path
 
 from . import views
 
 urlpatterns = [
-    url(
+    re_path(
         r"^signup_request/$",
         views.SingupRequestView.as_view(),
         name="webauthn_signup_request",
     ),
-    url(r"^signup/(?P<ukey>.+)/$", views.SignupView.as_view(), name="webauthn_signup"),
-    url(
+    re_path(
+        r"^signup/(?P<ukey>.+)/$", views.SignupView.as_view(), name="webauthn_signup"
+    ),
+    re_path(
         r"^login_request/$",
         views.LoginRequestView.as_view(),
         name="webauthn_login_request",
     ),
-    url(r"^login/$", views.LoginView.as_view(), name="webauthn_login"),
+    re_path(r"^login/$", views.LoginView.as_view(), name="webauthn_login"),
 ]
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 6c15ef20..2ad8c7f9 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -1,5 +1,4 @@
 #!/usr/bin/env python3
-# -*- coding: utf-8 -*-
 #
 # djoser documentation build configuration file, created by
 # sphinx-quickstart on Fri Jun  2 10:56:45 2017.
diff --git a/docs/source/webauthn.rst b/docs/source/webauthn.rst
index 3cd8a27b..4795a18c 100644
--- a/docs/source/webauthn.rst
+++ b/docs/source/webauthn.rst
@@ -8,7 +8,8 @@ WebAuthn
 Configuration
 =============
 
-Assuming you have Djoser installed, add ``djoser.webauthn`` to ``INSTALLED_APPS``:
+First make sure to install ``webauthn<1.0``. You can use webauthn as "extras" when installing djoser, e.g. ``pip install djoser[webauthn]`` or ``poetry add djoser -E webauthn``.
+Then add ``djoser.webauthn`` to ``INSTALLED_APPS``:
 
 .. code-block:: python
 
@@ -144,7 +145,7 @@ Running example app
 -------------------
 
     .. code-block:: bash
-    
+
         $ git clone git@github.com:sunscrapers/djoser.git
         $ pip install -r requirements.txt
         $ cd djoser/testproject
diff --git a/poetry.lock b/poetry.lock
index 31ebdb9a..7662fc66 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -72,6 +72,18 @@ jupyter = ["ipython (>=7.8.0)", "tokenize-rt (>=3.2.0)"]
 python2 = ["typed-ast (>=1.4.3)"]
 uvloop = ["uvloop (>=0.15.2)"]
 
+[[package]]
+name = "cbor2"
+version = "5.4.2"
+description = "Pure Python CBOR (de)serializer with extensive tag support"
+category = "main"
+optional = true
+python-versions = ">=3.6"
+
+[package.extras]
+doc = ["sphinx-rtd-theme", "sphinx-autodoc-typehints (>=1.2.0)"]
+test = ["pytest", "pytest-cov"]
+
 [[package]]
 name = "certifi"
 version = "2021.10.8"
@@ -293,9 +305,17 @@ python-versions = ">=3.7"
 docs = ["furo (>=2021.8.17b43)", "sphinx (>=4.1)", "sphinx-autodoc-typehints (>=1.12)"]
 testing = ["covdefaults (>=1.2.0)", "coverage (>=4)", "pytest (>=4)", "pytest-cov", "pytest-timeout (>=1.4.2)"]
 
+[[package]]
+name = "future"
+version = "0.18.2"
+description = "Clean single-source support for Python 3 and 2"
+category = "main"
+optional = true
+python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
+
 [[package]]
 name = "identify"
-version = "2.4.1"
+version = "2.4.3"
 description = "File identification library for Python"
 category = "dev"
 optional = false
@@ -487,6 +507,22 @@ dev = ["sphinx", "sphinx-rtd-theme", "zope.interface", "cryptography (>=3.3.1)",
 docs = ["sphinx", "sphinx-rtd-theme", "zope.interface"]
 tests = ["pytest (>=6.0.0,<7.0.0)", "coverage[toml] (==5.0.4)"]
 
+[[package]]
+name = "pyopenssl"
+version = "21.0.0"
+description = "Python wrapper module around the OpenSSL library"
+category = "main"
+optional = true
+python-versions = ">=2.7,!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,!=3.5.*"
+
+[package.dependencies]
+cryptography = ">=3.3"
+six = ">=1.5.2"
+
+[package.extras]
+docs = ["sphinx", "sphinx-rtd-theme"]
+test = ["flaky", "pretend", "pytest (>=3.0.1)"]
+
 [[package]]
 name = "pyparsing"
 version = "3.0.6"
@@ -629,7 +665,7 @@ rsa = ["oauthlib[signedtoken] (>=3.0.0)"]
 name = "six"
 version = "1.16.0"
 description = "Python 2 and 3 compatibility utilities"
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*"
 
@@ -741,7 +777,7 @@ python-versions = ">=3.6"
 
 [[package]]
 name = "urllib3"
-version = "1.26.7"
+version = "1.26.8"
 description = "HTTP library with thread-safe connection pooling, file post, and more."
 category = "main"
 optional = false
@@ -771,6 +807,21 @@ six = ">=1.9.0,<2"
 docs = ["proselint (>=0.10.2)", "sphinx (>=3)", "sphinx-argparse (>=0.2.5)", "sphinx-rtd-theme (>=0.4.3)", "towncrier (>=21.3)"]
 testing = ["coverage (>=4)", "coverage-enable-subprocess (>=1)", "flaky (>=3)", "pytest (>=4)", "pytest-env (>=0.6.2)", "pytest-freezegun (>=0.4.1)", "pytest-mock (>=2)", "pytest-randomly (>=1)", "pytest-timeout (>=1)", "packaging (>=20.0)"]
 
+[[package]]
+name = "webauthn"
+version = "0.4.7"
+description = "A WebAuthn Python module."
+category = "main"
+optional = true
+python-versions = "*"
+
+[package.dependencies]
+cbor2 = ">=4.0.1"
+cryptography = ">=2.3.1"
+future = ">=0.17.1"
+pyOpenSSL = ">=16.0.0"
+six = ">=1.11.0"
+
 [[package]]
 name = "zipp"
 version = "3.7.0"
@@ -785,11 +836,12 @@ testing = ["pytest (>=6)", "pytest-checkdocs (>=2.4)", "pytest-flake8", "pytest-
 
 [extras]
 test = ["pytest", "codecov", "coverage", "pytest-cov", "pytest-django", "pytest-pythonpath", "djet"]
+webauthn = ["webauthn"]
 
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7"
-content-hash = "c4570c105685677b48e31eb4e6fbf79317ae0e2c6e4c123e69048adc46d469a2"
+content-hash = "49e4479bcf2db6321f19c554489a8bd111a22414c471ef33e6d867d968f21a8c"
 
 [metadata.files]
 asgiref = [
@@ -812,6 +864,21 @@ black = [
     {file = "black-21.12b0-py3-none-any.whl", hash = "sha256:a615e69ae185e08fdd73e4715e260e2479c861b5740057fde6e8b4e3b7dd589f"},
     {file = "black-21.12b0.tar.gz", hash = "sha256:77b80f693a569e2e527958459634f18df9b0ba2625ba4e0c2d5da5be42e6f2b3"},
 ]
+cbor2 = [
+    {file = "cbor2-5.4.2-cp36-cp36m-macosx_10_14_x86_64.whl", hash = "sha256:0153635a78e62d70f26f5b3469cb8de822420eda69c996304fb3d0dc1a53d7f3"},
+    {file = "cbor2-5.4.2-cp36-cp36m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:70fb47a4bca70ae2d1b2b6c9d5ed6c898494739966653f7c84737f795b26d754"},
+    {file = "cbor2-5.4.2-cp36-cp36m-win_amd64.whl", hash = "sha256:10f178697e66eaae51534c3ef9acce1abf2f747e63c841e8702b9453c5bc4cfe"},
+    {file = "cbor2-5.4.2-cp37-cp37m-macosx_10_14_x86_64.whl", hash = "sha256:4c112b21fad53b2d936ef2d55c698641a6d49025c1a9cf73db3ef24684514db1"},
+    {file = "cbor2-5.4.2-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:93baf1ee33a305acf8f1391fed4e63ea2e837b561294fd6275ce8785acb795fa"},
+    {file = "cbor2-5.4.2-cp37-cp37m-win_amd64.whl", hash = "sha256:d9f64241bb30439f6ebde74101683e9dceecab95afe105560ac9d0e54d1b3c2e"},
+    {file = "cbor2-5.4.2-cp38-cp38-macosx_10_14_x86_64.whl", hash = "sha256:2757a7b624478d3b6707adf8ab7aef03d81fdaca6bea981b2323069660b9360f"},
+    {file = "cbor2-5.4.2-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:32c1d00d8ad1a89f2358bf444fd43cacc3ca61f3c3feb1a2f2b2bea8ba4853d2"},
+    {file = "cbor2-5.4.2-cp38-cp38-win_amd64.whl", hash = "sha256:79c10306d9128258dea110c01abbe9c58c48ee2ffcf995f982fb063f1a82e2ee"},
+    {file = "cbor2-5.4.2-cp39-cp39-macosx_10_14_x86_64.whl", hash = "sha256:0e27c52abdccadadab858437f6d98d5e8711aa84f0af7417dd1404d16127db7f"},
+    {file = "cbor2-5.4.2-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:395aec8f415f039ab3be6cb58861c21bd2202f5c0ad6537b31956da532ea74ad"},
+    {file = "cbor2-5.4.2-cp39-cp39-win_amd64.whl", hash = "sha256:310c7d7925f7aa6cb90791606be17c164bbf3b28d4d17047b5d19d303f2fe817"},
+    {file = "cbor2-5.4.2.tar.gz", hash = "sha256:e283e70b55a049ff364cc5e648fde587e4d9b0e87e4b2664c69e639135e6b3b8"},
+]
 certifi = [
     {file = "certifi-2021.10.8-py2.py3-none-any.whl", hash = "sha256:d62a0163eb4c2344ac042ab2bdf75399a71a2d8c7d47eac2e2ee91b9d6339569"},
     {file = "certifi-2021.10.8.tar.gz", hash = "sha256:78884e7c1d4b00ce3cea67b44566851c4343c120abd683433ce934a68ea58872"},
@@ -1000,9 +1067,12 @@ filelock = [
     {file = "filelock-3.4.2-py3-none-any.whl", hash = "sha256:cf0fc6a2f8d26bd900f19bf33915ca70ba4dd8c56903eeb14e1e7a2fd7590146"},
     {file = "filelock-3.4.2.tar.gz", hash = "sha256:38b4f4c989f9d06d44524df1b24bd19e167d851f19b50bf3e3559952dddc5b80"},
 ]
+future = [
+    {file = "future-0.18.2.tar.gz", hash = "sha256:b1bead90b70cf6ec3f0710ae53a525360fa360d306a86583adc6bf83a4db537d"},
+]
 identify = [
-    {file = "identify-2.4.1-py2.py3-none-any.whl", hash = "sha256:0192893ff68b03d37fed553e261d4a22f94ea974093aefb33b29df2ff35fed3c"},
-    {file = "identify-2.4.1.tar.gz", hash = "sha256:64d4885e539f505dd8ffb5e93c142a1db45480452b1594cacd3e91dca9a984e9"},
+    {file = "identify-2.4.3-py2.py3-none-any.whl", hash = "sha256:ac9c919c8ac5b90d03f8e1bce6dedcbd8a3b2a59c46737c04ed852e2d307af29"},
+    {file = "identify-2.4.3.tar.gz", hash = "sha256:8d80d877441073e7222ff272da45ca5ca1d901412790544b446e7d363ad5e9f0"},
 ]
 idna = [
     {file = "idna-3.3-py3-none-any.whl", hash = "sha256:84d9dd047ffa80596e0f246e2eab0b391788b0503584e8945f2368256d2735ff"},
@@ -1139,6 +1209,10 @@ pyjwt = [
     {file = "PyJWT-2.3.0-py3-none-any.whl", hash = "sha256:e0c4bb8d9f0af0c7f5b1ec4c5036309617d03d56932877f2f7a0beeb5318322f"},
     {file = "PyJWT-2.3.0.tar.gz", hash = "sha256:b888b4d56f06f6dcd777210c334e69c737be74755d3e5e9ee3fe67dc18a0ee41"},
 ]
+pyopenssl = [
+    {file = "pyOpenSSL-21.0.0-py2.py3-none-any.whl", hash = "sha256:8935bd4920ab9abfebb07c41a4f58296407ed77f04bd1a92914044b848ba1ed6"},
+    {file = "pyOpenSSL-21.0.0.tar.gz", hash = "sha256:5e2d8c5e46d0d865ae933bef5230090bdaf5506281e9eec60fa250ee80600cb3"},
+]
 pyparsing = [
     {file = "pyparsing-3.0.6-py3-none-any.whl", hash = "sha256:04ff808a5b90911829c55c4e26f75fa5ca8a2f5f36aa3a51f68e27033341d3e4"},
     {file = "pyparsing-3.0.6.tar.gz", hash = "sha256:d9bdec0013ef1eb5a84ab39a3b3868911598afa494f5faa038647101504e2b81"},
@@ -1268,13 +1342,17 @@ uritemplate = [
     {file = "uritemplate-4.1.1.tar.gz", hash = "sha256:4346edfc5c3b79f694bccd6d6099a322bbeb628dbf2cd86eea55a456ce5124f0"},
 ]
 urllib3 = [
-    {file = "urllib3-1.26.7-py2.py3-none-any.whl", hash = "sha256:c4fdf4019605b6e5423637e01bc9fe4daef873709a7973e195ceba0a62bbc844"},
-    {file = "urllib3-1.26.7.tar.gz", hash = "sha256:4987c65554f7a2dbf30c18fd48778ef124af6fab771a377103da0585e2336ece"},
+    {file = "urllib3-1.26.8-py2.py3-none-any.whl", hash = "sha256:000ca7f471a233c2251c6c7023ee85305721bfdf18621ebff4fd17a8653427ed"},
+    {file = "urllib3-1.26.8.tar.gz", hash = "sha256:0e7c33d9a63e7ddfcb86780aac87befc2fbddf46c58dbb487e0855f7ceec283c"},
 ]
 virtualenv = [
     {file = "virtualenv-20.13.0-py2.py3-none-any.whl", hash = "sha256:339f16c4a86b44240ba7223d0f93a7887c3ca04b5f9c8129da7958447d079b09"},
     {file = "virtualenv-20.13.0.tar.gz", hash = "sha256:d8458cf8d59d0ea495ad9b34c2599487f8a7772d796f9910858376d1600dd2dd"},
 ]
+webauthn = [
+    {file = "webauthn-0.4.7-py2.py3-none-any.whl", hash = "sha256:238391b2e2cc60fb51a2cd2d2d6be149920b9af6184651353d9f95856617a9e7"},
+    {file = "webauthn-0.4.7.tar.gz", hash = "sha256:8ad9072ff1d6169f3be30d4dc8733ea563dd266962397bc58b40f674a6af74ac"},
+]
 zipp = [
     {file = "zipp-3.7.0-py3-none-any.whl", hash = "sha256:b47250dd24f92b7dd6a0a8fc5244da14608f3ca90a5efcd37a3b1642fac9a375"},
     {file = "zipp-3.7.0.tar.gz", hash = "sha256:9f50f446828eb9d45b267433fd3e9da8d801f614129124863f9c51ebceafb87d"},
diff --git a/pyproject.toml b/pyproject.toml
index bd81d0b2..6d696fdb 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -47,8 +47,12 @@ pytest-django = {version="^4.5.2", optional=true}
 pytest-pythonpath = {version="^0.7.3", optional=true}
 djet = {version="^0.3.0", optional=true}
 pytz = "^2021.3"
+webauthn = {version="<1.0", optional=true}
 
 
+[tool.poetry.group.dev.dependencies]
+pyupgrade = "^2.31.0"
+
 [tool.poetry.dev-dependencies]
 pre-commit = "^2.7.1"
 tox = "^3.20.0"
@@ -66,7 +70,9 @@ test = [
   "pytest-pythonpath",
   "djet",
 ]
-
+webauthn = [
+    "webauthn",
+]
 
 [tool.black]
 line-length = 88
diff --git a/testproject/testapp/static/js/base64.js b/testproject/testapp/static/js/base64.js
index 3ebe0a92..69fcb107 100644
--- a/testproject/testapp/static/js/base64.js
+++ b/testproject/testapp/static/js/base64.js
@@ -115,4 +115,4 @@ var lookup = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'
 
   exports.toByteArray = b64ToByteArray
   exports.fromByteArray = uint8ToBase64
-}(typeof exports === 'undefined' ? (this.base64js = {}) : exports))
\ No newline at end of file
+}(typeof exports === 'undefined' ? (this.base64js = {}) : exports))
diff --git a/testproject/testapp/static/js/webauthn.js b/testproject/testapp/static/js/webauthn.js
index d5d428c7..a5767d04 100644
--- a/testproject/testapp/static/js/webauthn.js
+++ b/testproject/testapp/static/js/webauthn.js
@@ -47,7 +47,7 @@ const transformCredentialCreateOptions = (credentialCreateOptionsFromServer) =>
 
     challenge = Uint8Array.from(
         atob(credentialCreateOptionsFromServer.challenge), c => c.charCodeAt(0));
-    
+
     const transformedCredentialCreateOptions = Object.assign(
             {}, credentialCreateOptionsFromServer,
             {challenge, user});
@@ -62,7 +62,7 @@ const transformNewAssertionForServer = (newAssertion) => {
         newAssertion.response.clientDataJSON);
     const rawId = new Uint8Array(
         newAssertion.rawId);
-    
+
     const registrationClientExtensions = newAssertion.getClientExtensionResults();
 
     return {
@@ -137,7 +137,7 @@ async function handleSignup(e) {
     const displayName = document.getElementById('signup-displayname').value;
 
     const credentialOptions = await getCredentialOptions(username, displayName);
-    
+
     const rawAssertionForServer = await navigator.credentials.create({
         publicKey: credentialOptions,
     });
diff --git a/testproject/testapp/tests/common.py b/testproject/testapp/tests/common.py
index 3a8d9175..e0c2146a 100644
--- a/testproject/testapp/tests/common.py
+++ b/testproject/testapp/tests/common.py
@@ -6,7 +6,7 @@
 try:
     from unittest import mock
 except ImportError:
-    import mock
+    from unittest import mock
 
 __all__ = [
     "get_user_model",
diff --git a/testproject/testapp/tests/test_reset_username.py b/testproject/testapp/tests/test_reset_username.py
index e6b85e73..2829db19 100644
--- a/testproject/testapp/tests/test_reset_username.py
+++ b/testproject/testapp/tests/test_reset_username.py
@@ -20,7 +20,7 @@ class UsernameResetViewTest(
     APITestCase, assertions.StatusCodeAssertionsMixin, assertions.EmailAssertionsMixin
 ):
     def setUp(self):
-        self.base_url = reverse("user-reset-{}".format(User.USERNAME_FIELD))
+        self.base_url = reverse(f"user-reset-{User.USERNAME_FIELD}")
 
     def test_post_should_send_email_to_user_with_username_reset_link(self):
         user = create_user()
diff --git a/testproject/testapp/tests/test_reset_username_confirm.py b/testproject/testapp/tests/test_reset_username_confirm.py
index de615de8..e9272617 100644
--- a/testproject/testapp/tests/test_reset_username_confirm.py
+++ b/testproject/testapp/tests/test_reset_username_confirm.py
@@ -19,7 +19,7 @@ class UsernameResetConfirmViewTest(
     APITestCase, assertions.EmailAssertionsMixin, assertions.StatusCodeAssertionsMixin
 ):
     def setUp(self):
-        self.base_url = reverse("user-reset-{}-confirm".format(User.USERNAME_FIELD))
+        self.base_url = reverse(f"user-reset-{User.USERNAME_FIELD}-confirm")
 
     def test_post_set_new_username(self):
         user = create_user()
diff --git a/testproject/testapp/tests/test_set_username.py b/testproject/testapp/tests/test_set_username.py
index e1e37b1f..d2165e98 100644
--- a/testproject/testapp/tests/test_set_username.py
+++ b/testproject/testapp/tests/test_set_username.py
@@ -15,7 +15,7 @@ class SetUsernameViewTest(
     APITestCase, assertions.EmailAssertionsMixin, assertions.StatusCodeAssertionsMixin
 ):
     def setUp(self):
-        self.base_url = reverse("user-set-{}".format(User.USERNAME_FIELD))
+        self.base_url = reverse(f"user-set-{User.USERNAME_FIELD}")
 
     def test_post_set_new_username(self):
         user = create_user()
diff --git a/testproject/testapp/tests/webauthn/test_login_request.py b/testproject/testapp/tests/webauthn/test_login_request.py
index 76a57cb2..da23dbf1 100644
--- a/testproject/testapp/tests/webauthn/test_login_request.py
+++ b/testproject/testapp/tests/webauthn/test_login_request.py
@@ -3,7 +3,6 @@
 from rest_framework import status
 from rest_framework.reverse import reverse
 from rest_framework.test import APITestCase
-
 from testapp.tests.common import create_user
 
 from .utils import create_credential_options
@@ -28,7 +27,7 @@ def test_post_with_username_not_registered_with_webauthn_should_return_400(self)
         self.assert_status_equal(response, status.HTTP_400_BAD_REQUEST)
 
     def test_post_with_username_registered_with_webauthn_should_return_login_assertion(
-        self
+        self,
     ):
         co = create_credential_options(with_user=True)
         data = {"username": co.username}
diff --git a/testproject/testapp/tests/webauthn/test_signup_request.py b/testproject/testapp/tests/webauthn/test_signup_request.py
index 9f2b9303..5431261d 100644
--- a/testproject/testapp/tests/webauthn/test_signup_request.py
+++ b/testproject/testapp/tests/webauthn/test_signup_request.py
@@ -2,9 +2,9 @@
 from rest_framework import status
 from rest_framework.reverse import reverse
 from rest_framework.test import APITestCase
+from testapp.tests.common import create_user
 
 from djoser.webauthn.models import CredentialOptions
-from testapp.tests.common import create_user
 
 
 class SignupRequestViewTest(
diff --git a/testproject/testapp/tests/webauthn/utils.py b/testproject/testapp/tests/webauthn/utils.py
index 82c7a32c..c1907b39 100644
--- a/testproject/testapp/tests/webauthn/utils.py
+++ b/testproject/testapp/tests/webauthn/utils.py
@@ -1,6 +1,7 @@
-from djoser.webauthn.models import CredentialOptions
 from testapp.tests.common import create_user
 
+from djoser.webauthn.models import CredentialOptions
+
 
 def create_credential_options(
     challenge="f00",
diff --git a/testproject/testapp/validators.py b/testproject/testapp/validators.py
index 23bea93e..f4d24201 100644
--- a/testproject/testapp/validators.py
+++ b/testproject/testapp/validators.py
@@ -1,7 +1,7 @@
 from django.core.exceptions import ValidationError
 
 
-class Is666(object):
+class Is666:
     def validate(self, password, *args, **kwargs):
         if password == "666":
             raise ValidationError("Password 666 is not allowed.", code="no666")
diff --git a/tox.ini b/tox.ini
index d52ddfbf..3e62ba22 100644
--- a/tox.ini
+++ b/tox.ini
@@ -20,6 +20,7 @@ deps =
     drf313: djangorestframework>=3.13,<3.14
 extras =
     test
+    webauthn
 
 commands =
     django-admin --version