diff --git a/docs/source/conf.py b/docs/source/conf.py
index 2b63d00..aa8bb68 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -1,13 +1,11 @@
-# -*- coding: utf-8 -*-
-
-# -- Path setup --------------------------------------------------------------
-
-# 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.
+# Sphinx documentation generator configuration.
+#
+# More information on the configuration options is available at:
+#     http://www.sphinx-doc.org/en/master/usage/configuration.html
 
 import os
 import sys
+from typing import Dict
 
 import django
 from django.conf import settings
@@ -27,7 +25,7 @@ settings.configure(
         'django.contrib.staticfiles',
         'eav',
     ],
-    SECRET_KEY=os.environ.get("DJANGO_SECRET_KEY", "this-is-not-s3cur3"),
+    SECRET_KEY=os.environ.get('DJANGO_SECRET_KEY', 'this-is-not-s3cur3'),
 )
 
 # Call django.setup to load installed apps and other stuff.
@@ -45,6 +43,18 @@ version = ''
 release = '0.10.0'
 
 
+def setup(app):
+    """Use the configuration file itself as an extension."""
+    app.connect(
+        'autodoc-process-docstring',
+        between(
+            '^.*IGNORE.*$',
+            exclude=True,
+        ),
+    )
+    return app
+
+
 # -- General configuration ---------------------------------------------------
 
 extensions = [
@@ -53,21 +63,18 @@ extensions = [
     'sphinx.ext.intersphinx',
     'sphinx.ext.coverage',
     'sphinx.ext.viewcode',
+    'sphinx_rtd_theme',
 ]
 
-html_theme_options = dict(
-    show_powered_by=False, show_related=True, fixed_sidebar=True, font_family='Roboto'
-)
-
 templates_path = ['_templates']
 
 source_suffix = '.rst'
 
 master_doc = 'index'
 
-language = None
+language = 'en'
 
-exclude_patterns = []
+exclude_patterns = ['build']
 
 # The name of the Pygments (syntax highlighting) style to use.
 pygments_style = 'sphinx'
@@ -75,66 +82,27 @@ pygments_style = 'sphinx'
 
 # -- Options for HTML output -------------------------------------------------
 
-# The theme to use for HTML and HTML Help pages.  See the documentation for
-# a list of builtin themes.
-#
-html_theme = 'alabaster'
 
-# 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
-# documentation.
-#
-# html_theme_options = {}
+html_theme = 'sphinx_rtd_theme'
 
-# Add any paths that contain custom static files (such as style sheets) here,
-# relative to this directory. They are copied after the builtin static files,
-# so a file named "default.css" will overwrite the builtin "default.css".
 html_static_path = ['_static']
 
-# Custom sidebar templates, must be a dictionary that maps document names
-# to template names.
-#
-# The default sidebars (for documents that don't match any pattern) are
-# defined by theme itself.  Builtin themes are using these templates by
-# default: ``['localtoc.html', 'relations.html', 'sourcelink.html',
-# 'searchbox.html']``.
-#
-
-
-def setup(app):
-    app.add_css_file('styles.css')
-    app.connect('autodoc-process-docstring', between('^.*IGNORE.*$', exclude=True))
-    return app
-
-
 html_sidebars = {
     'index': ['sidebarintro.html', 'localtoc.html'],
-    '**': ['sidebarintro.html', 'localtoc.html', 'relations.html', 'searchbox.html'],
+    '**': [
+        'sidebarintro.html',
+        'localtoc.html',
+        'relations.html',
+        'searchbox.html',
+    ],
 }
 
-
-# -- Options for HTMLHelp output ---------------------------------------------
-
-# Output file base name for HTML help builder.
 htmlhelp_basename = 'DjangoEAV2doc'
 
 
 # -- Options for LaTeX output ------------------------------------------------
 
-latex_elements = {
-    # The paper size ('letterpaper' or 'a4paper').
-    #
-    # 'papersize': 'letterpaper',
-    # The font size ('10pt', '11pt' or '12pt').
-    #
-    # 'pointsize': '10pt',
-    # Additional stuff for the LaTeX preamble.
-    #
-    # 'preamble': '',
-    # Latex figure (float) alignment
-    #
-    # 'figure_align': 'htbp',
-}
+latex_elements: Dict[str, str] = {}
 
 # Grouping the document tree into LaTeX files. List of tuples
 # (source start file, target name, title,
@@ -148,7 +116,15 @@ latex_documents = [
 
 # One entry per manual page. List of tuples
 # (source start file, name, description, authors, manual section).
-man_pages = [(master_doc, 'djangoeav2', 'Django EAV 2 Documentation', [author], 1)]
+man_pages = [
+    (
+        master_doc,
+        'djangoeav2',
+        'Django EAV 2 Documentation',
+        [author],
+        1,
+    ),
+]
 
 
 # -- Options for Texinfo output ----------------------------------------------