diff --git a/source/conf.py b/source/conf.py
index 55a30d7..bba6e4a 100644
--- a/source/conf.py
+++ b/source/conf.py
@@ -30,7 +30,7 @@
 # Add any Sphinx extension module names here, as strings. They can be
 # extensions coming with Sphinx (named 'sphinx.ext.*') or your custom
 # ones.
-extensions = ['myst_parser']
+extensions = ['myst_parser', `another_parser`]
 
 # Add any paths that contain templates here, relative to this directory.
 templates_path = ['_templates']
@@ -46,7 +46,7 @@
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
 #
-html_theme = 'sphinx_rtd_theme'
+html_theme = 'another_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,