diff --git a/.readthedocs.yml b/.readthedocs.yml
index cdc96298..5fa1c054 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -14,5 +14,6 @@ python:
       - requirements: docs/requirements.txt
 
 sphinx:
+  configuration: docs/conf.py
   builder: html
   fail_on_warning: true