diff --git a/.readthedocs.yaml b/.readthedocs.yaml
new file mode 100644
index 0000000..bee434d
--- /dev/null
+++ b/.readthedocs.yaml
@@ -0,0 +1,35 @@
+# Read the Docs configuration file for Sphinx projects
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+
+# Required
+version: 2
+
+# Set the OS, Python version and other tools you might need
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.12"
+    # You can also specify other tool versions:
+    # nodejs: "20"
+    # rust: "1.70"
+    # golang: "1.20"
+
+# Build documentation in the "docs/" directory with Sphinx
+sphinx:
+  configuration: docs/conf.py
+  # You can configure Sphinx to use a different builder, for instance use the dirhtml builder for simpler URLs
+  # builder: "dirhtml"
+  # Fail on all warnings to avoid broken references
+  # fail_on_warning: true
+
+# Optionally build your docs in additional formats such as PDF and ePub
+formats:
+  - pdf
+  - epub
+
+# Optional but recommended, declare the Python requirements required
+# to build your documentation
+# See https://docs.readthedocs.io/en/stable/guides/reproducible-builds.html
+python:
+  install:
+    - requirements: docs/requirements.txt
diff --git a/LICENSE.md b/LICENSE.md
index 8f2d27a..df313e7 100644
--- a/LICENSE.md
+++ b/LICENSE.md
@@ -1,4 +1,4 @@
-Copyright (c) 2011, SD Elements
+Copyright (c), SD Elements
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
diff --git a/docs/conf.py b/docs/conf.py
index bd66d82..d61589e 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -14,19 +14,19 @@
 import os
 import sys
 
+import django
+
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the
 # documentation root, use os.path.abspath to make it absolute, like shown here.
-sys.path.append(os.path.dirname(__file__))
-os.environ.setdefault("DJANGO_SETTINGS_MODULE", "test.settings")
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "tests.settings")
+django.setup()
 
 # -- General configuration -----------------------------------------------------
 
 # Add any Sphinx extension module names here, as strings. They can be extensions
 # coming with Sphinx (named 'sphinx.ext.*') or your custom ones.
-extensions = [
-    "sphinx.ext.autodoc",
-]
+extensions = ["sphinx.ext.autodoc", "sphinx_rtd_theme"]
 
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ["_templates"]
@@ -42,7 +42,7 @@
 
 # General information about the project.
 project = "django-security"
-copyright = "2013, SD Elements"
+copyright = "2024, SD Elements"
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
@@ -95,7 +95,7 @@
 
 # The theme to use for HTML and HTML Help pages.  Major themes that come with
 # Sphinx are currently 'default' and 'sphinxdoc'.
-html_theme = "default"
+html_theme = "sphinx_rtd_theme"
 
 # Theme options are theme-specific and customize the look and feel of a theme
 # further.  For a list of options available for each theme, see the
diff --git a/docs/requirements.txt b/docs/requirements.txt
new file mode 100644
index 0000000..0df8acd
--- /dev/null
+++ b/docs/requirements.txt
@@ -0,0 +1,4 @@
+# Defining the exact version will make sure things don't break
+sphinx==5.3.0
+sphinx_rtd_theme==1.1.1
+readthedocs-sphinx-search==0.1.1
diff --git a/security/auth.py b/security/auth.py
index 0b42bf1..dcebaaa 100644
--- a/security/auth.py
+++ b/security/auth.py
@@ -1,5 +1,3 @@
-# Copyright (c) 2011, SD Elements. See LICENSE.txt for details.
-
 from django.core.validators import RegexValidator
 from django.forms import ValidationError
 from django.utils.translation import gettext as _
diff --git a/security/auth_throttling/__init__.py b/security/auth_throttling/__init__.py
index 8a8869c..a0e3258 100644
--- a/security/auth_throttling/__init__.py
+++ b/security/auth_throttling/__init__.py
@@ -1,8 +1,6 @@
-# Copyright (c) 2011, SD Elements. See ../LICENSE.txt for details.
-
 import hashlib
 import logging
-import time  # Monkeypatched by the tests.
+import time
 from math import ceil
 
 from django.contrib.auth import REDIRECT_FIELD_NAME
diff --git a/security/auth_throttling/views.py b/security/auth_throttling/views.py
index ea283b6..16998e8 100644
--- a/security/auth_throttling/views.py
+++ b/security/auth_throttling/views.py
@@ -1,5 +1,3 @@
-# Copyright (c) 2011, SD Elements. See ../LICENSE.txt for details.
-
 import logging
 
 from django.contrib.auth.models import User
diff --git a/security/forms.py b/security/forms.py
index 368afd7..269a4d8 100644
--- a/security/forms.py
+++ b/security/forms.py
@@ -1,5 +1,3 @@
-# Copyright (c) 2011, SD Elements. See LICENSE.txt for details.
-
 import django.contrib.auth.forms
 from django import forms
 from django.utils.translation import gettext_lazy as _
diff --git a/security/middleware.py b/security/middleware.py
index bf28218..f5289ad 100644
--- a/security/middleware.py
+++ b/security/middleware.py
@@ -1,5 +1,3 @@
-# Copyright (c) 2011, SD Elements. See LICENSE.txt for details.
-
 import cProfile
 import importlib
 import json
@@ -1077,20 +1075,19 @@ class ReferrerPolicyMiddleware(BaseMiddleware):
     Sends Referrer-Policy HTTP header that controls when the browser will set
     the `Referer` header. Use REFERRER_POLICY option in settings file
     with the following values:
-
-      - ``no-referrer``
-      - ``no-referrer-when-downgrade``
-      - ``origin``
-      - ``origin-when-cross-origin``
-      - ``same-origin`` (*default*)
-      - ``strict-origin``
-      - ``strict-origin-when-cross-origin``
-      - ``unsafe-url``
-      - ``off``
+    - ``no-referrer``
+    - ``no-referrer-when-downgrade``
+    - ``origin``
+    - ``origin-when-cross-origin``
+    - ``same-origin`` (*default*)
+    - ``strict-origin``
+    - ``strict-origin-when-cross-origin``
+    - ``unsafe-url``
+    - ``off``
 
     Reference:
     - `Referrer-Policy from Mozilla Developer Network
-      <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Referrer-Policy>`
+    <https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Referrer-Policy>`
     """
 
     OPTIONAL_SETTINGS = ("REFERRER_POLICY",)
diff --git a/security/models.py b/security/models.py
index 9969752..1ac7ad7 100644
--- a/security/models.py
+++ b/security/models.py
@@ -1,4 +1,3 @@
-# Copyright (c) 2011, SD Elements. See LICENSE.txt for details.
 from django.conf import settings
 from django.contrib.auth.models import User
 from django.db import models
diff --git a/security/password_expiry.py b/security/password_expiry.py
index 3e2ce29..47cdb67 100644
--- a/security/password_expiry.py
+++ b/security/password_expiry.py
@@ -1,5 +1,3 @@
-# Copyright (c) 2011, SD Elements. See LICENSE.txt for details.
-
 from django.conf import settings
 
 from .models import PasswordExpiry
diff --git a/security/views.py b/security/views.py
index 8ff6536..cb6fff9 100644
--- a/security/views.py
+++ b/security/views.py
@@ -1,5 +1,3 @@
-# Copyright (c) 2011, SD Elements. See LICENSE.txt for details.
-
 import json
 import logging
 
diff --git a/tests/tests.py b/tests/tests.py
index 2f249cd..29acd62 100644
--- a/tests/tests.py
+++ b/tests/tests.py
@@ -1,5 +1,3 @@
-# Copyright (c) 2011, SD Elements. See LICENSE.txt for details.
-
 import datetime
 import json
 import time  # We monkeypatch this.
diff --git a/tests/urls.py b/tests/urls.py
index 5c302a2..e418192 100644
--- a/tests/urls.py
+++ b/tests/urls.py
@@ -1,5 +1,3 @@
-# Copyright (c) 2011, SD Elements. See ../LICENSE.txt for details.
-
 from django.contrib.auth.views import LoginView, PasswordChangeView
 from django.http import HttpResponse
 from django.urls import path, re_path