diff --git a/.readthedocs.yml b/.readthedocs.yml
index aba41d7..762e7aa 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -17,6 +17,9 @@ build:
 conda:
   environment: docs/environment.yml
 
+sphinx:
+  configuration: docs/conf.py
+
 # Optionally set the version of Python and requirements required to build your docs
 python:
   install: