diff --git a/readthedocs.yaml b/readthedocs.yaml
index bdd2bf053..8f093abcc 100644
--- a/readthedocs.yaml
+++ b/readthedocs.yaml
@@ -14,4 +14,5 @@ python:
 
 sphinx:
   builder: html
+  configuration: docs/source/conf.py
   fail_on_warning: true