diff --git a/.readthedocs.yml b/.readthedocs.yaml
similarity index 80%
rename from .readthedocs.yml
rename to .readthedocs.yaml
index c32d929d..c601b1a5 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yaml
@@ -5,6 +5,12 @@
 # Required
 version: 2
 
+# Set the OS, Python version and other tools you might need
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.11"
+
 # Build documentation in the docs/ directory with Sphinx
 sphinx:
   configuration: docs/conf.py
diff --git a/docs/conf.py b/docs/conf.py
index 25dd10b7..18f0306d 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -322,22 +322,12 @@ def run_apidoc(_):
 
 # -- add static files----------------------------------------------------------
 
-def setup_static_content(app):
-    # configure stylesheets
-    for sdir in html_static_path:
-        # add stylesheets
-        cssdir = os.path.join(sdir, 'css')
-        for cssf in glob.glob(os.path.join(cssdir, '*.css')):
-            app.add_stylesheet(cssf.split(os.path.sep, 1)[1])
-
-        # add custom javascript
-        jsdir = os.path.join(sdir, 'js')
-        for jsf in glob.glob(os.path.join(jsdir, '*.js')):
-            app.add_javascript(jsf.split(os.path.sep, 1)[1])
+html_css_files = [
+    'css/custom.css',
+]
 
 
 # -- setup --------------------------------------------------------------------
 
 def setup(app):
-    setup_static_content(app)
     app.connect('builder-inited', run_apidoc)