diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index f59ca7397..454ad1c67 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -1,5 +1,8 @@
 version: 2
 
+sphinx:
+  configuration: doc/conf.py
+
 python:
   install:
     - method: pip