diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 0c0841b..e11e0cd 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -16,6 +16,3 @@ build:
 # Build documentation in the docs/ directory with Sphinx
 sphinx:
   configuration: docs/source/conf.py
-
-python:
-  install: [sphinx_rtd_theme]
diff --git a/docs/source/conf.py b/docs/source/conf.py
index 489fc75..de69521 100644
--- a/docs/source/conf.py
+++ b/docs/source/conf.py
@@ -42,7 +42,8 @@
     'sphinx.ext.autodoc',
     'sphinx.ext.napoleon',
     'sphinx.ext.mathjax',
-    'sphinx.ext.viewcode'
+    'sphinx.ext.viewcode',
+    'sphinx_rtd_theme',
 ]
 
 # Suppress "WARNING: unknown mimetype for ..."