diff --git a/doc/source/conf.py b/doc/source/conf.py
index fd76e11..ff4c3c5 100644
--- a/doc/source/conf.py
+++ b/doc/source/conf.py
@@ -14,7 +14,7 @@ release = '1.0'
 # -- General configuration ---------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#general-configuration
 
-extensions = ['sphinx_markdown_builder']
+extensions = ['sphinx_markdown_builder', 'sphinx_rtd_dark_mode']
 
 templates_path = ['_templates']
 exclude_patterns = ['_build']
@@ -27,6 +27,7 @@ exclude_patterns = ['_build']
 # markdown_http_base = "https://your-domain.com/docs"
 # markdown_uri_doc_suffix = ".html"
 
+default_dark_mode = False
 
 # -- Options for HTML output -------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#options-for-html-output
diff --git a/doc/source/requirements.txt b/doc/source/requirements.txt
index cb4f120..ba97ce7 100644
--- a/doc/source/requirements.txt
+++ b/doc/source/requirements.txt
@@ -1,4 +1,5 @@
 sphinx
 sphinx-rtd-theme
+sphinx-rtd-dark-mode
 myst-parser
 sphinx_markdown_builder