diff --git a/.drone.yml b/.drone.yml
index 67f0e47..ad4aab0 100644
--- a/.drone.yml
+++ b/.drone.yml
@@ -40,6 +40,7 @@ steps:
   image: python:3.8
   commands:
   - pip3 install Sphinx
+  - pip install sphinx_rtd_theme
   - pip3 install -r requirements.txt
   - cd docs
   - sphinx-apidoc -o source/ ../
diff --git a/docs/conf.py b/docs/conf.py
index 505863b..ae2f05d 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -44,7 +44,7 @@ exclude_patterns = ['_build', 'Thumbs.db', '.DS_Store']
 # The theme to use for HTML and HTML Help pages.  See the documentation for
 # a list of builtin themes.
 #
-html_theme = 'alabaster'
+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,