diff --git a/docs/source/conf.py b/docs/source/conf.py
index 9ab7c625344713c91952d64e278e2364412c3615..f4daec38dd49f2c31ff77874c240ebce780a8edf 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -30,5 +30,7 @@ language = 'german'
 # -- Options for HTML output -------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#options-for-html-output
 
-html_theme = 'alabaster'
+# html_theme = 'alabaster'
+html_theme = 'sphinx_rtd_theme' # 'alabaster'
+
 html_static_path = ['_static']