diff --git a/readthedocs.yml b/readthedocs.yml
index 1e61e1cf9..d095de512 100644
--- a/readthedocs.yml
+++ b/readthedocs.yml
@@ -8,3 +8,6 @@ build:
 
 conda:
   environment: docs/conda.yml
+
+sphinx:
+  configuration: docs/src/conf.py