diff --git a/docs/source/conf.py b/docs/source/conf.py
index 4b57f55..5cf7b3d 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -53,98 +53,27 @@ def setup(app):
 # -- Options for HTML output -------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#options-for-html-output
 
-# html_theme = "furo"
-# conf.py
-# ...
-
 # Activate the theme.
-html_theme = 'bootstrap'
-html_theme_path = sphinx_bootstrap_theme.get_html_theme_path()
-
-# (Optional) Logo. Should be small enough to fit the navbar (ideally 24x24).
-# Path should be relative to the ``_static`` files directory.
-# html_logo = "my_logo.png"
-
-# Theme options are theme-specific and customize the look and feel of a
-# theme further.
-html_theme_options = {
-    # Navigation bar title. (Default: ``project`` value)
-    'navbar_title': "python-template",
-
-    # Tab name for entire site. (Default: "Site")
-    
-    'navbar_site_name': "Site",
-
-    # A list of tuples containing pages or urls to link to.
-    # Valid tuples should be in the following forms:
-    #    (name, page)                 # a link to a page
-    #    (name, "/aa/bb", 1)          # a link to an arbitrary relative url
-    #    (name, "http://example.com", True) # arbitrary absolute url
-    # Note the "1" or "True" value above as the third argument to indicate
-    # an arbitrary url.
-    'navbar_links': [
-        ("Quickstart", "quickstart"),
-        ("Tutorials", "tutorial"),
-        ("API", "api"),
-        # ("Link", "http://example.com", True),
-    ],
+html_theme = "sphinx_book_theme"
 
-    # Render the next and previous page links in navbar. (Default: true)
-    'navbar_sidebarrel': False,
-
-    # Render the current pages TOC in the navbar. (Default: true)
-    'navbar_pagenav': False,
-
-    # Tab name for the current pages TOC. (Default: "Page")
-    'navbar_pagenav_name': "Page",
-
-    # Global TOC depth for "site" navbar tab. (Default: 1)
-    # Switching to -1 shows all levels.
-    'globaltoc_depth': 2,
-
-    # Include hidden TOCs in Site navbar?
-    #
-    # Note: If this is "false", you cannot have mixed ``:hidden:`` and
-    # non-hidden ``toctree`` directives in the same page, or else the build
-    # will break.
-    #
-    # Values: "true" (default) or "false"
-    'globaltoc_includehidden': "true",
-
-    # HTML navbar class (Default: "navbar") to attach to <div> element.
-    # For black navbar, do "navbar navbar-inverse"
-    'navbar_class': "navbar inverse",
-
-    # Fix navigation bar to top of page?
-    # Values: "true" (default) or "false"
-    'navbar_fixed_top': "true",
-
-    # Location of link to source.
-    # Options are "nav" (default), "footer" or anything else to exclude.
-    'source_link_position': "footer",
-
-    # Bootswatch (http://bootswatch.com/) theme.
-    #
-    # Options are nothing (default) or the name of a valid theme
-    # such as "cosmo" or "sandstone".
-    #
-    # The set of valid themes depend on the version of Bootstrap
-    # that's used (the next config option).
-    #
-    # Currently, the supported themes are:
-    # - Bootstrap 2: https://bootswatch.com/2
-    # - Bootstrap 3: https://bootswatch.com/3
-    'bootswatch_theme': "flatly",
-
-    # Choose Bootstrap version.
-    # Values: "3" (default) or "2" (in quotes)
-    'bootstrap_version': "3",
-}
 
 html_static_path = ["_static"]
-templates_path = ['_templates']
+templates_path = ["_templates"]
+
 
+# html_sidebars = {"**": []}
 
-html_sidebars = {
-    '**': []
+html_theme_options = {
+    "repository_branch": "devel",
+    "show_toc_level": 3,
+    "secondary_sidebar_items": ["page-toc"],
+    "icon_links": [
+        {
+            "name": "GitHub",
+            "url": "https://github.com/max-models/template-python",
+            "icon": "fab fa-github",
+            "type": "fontawesome",
+        },
+    ],
 }
+