diff --git a/.readthedocs.yml b/.readthedocs.yml
index 929b95b..1495af7 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -13,5 +13,6 @@ python:
           - rtd
 
 sphinx:
+  configuration: docs/conf.py
   builder: html
   fail_on_warning: true