diff --git a/readthedocs.yml b/readthedocs.yml
index 747c0df..3cd2b3f 100644
--- a/readthedocs.yml
+++ b/readthedocs.yml
@@ -8,3 +8,6 @@ build:
 
 conda:
   environment: conda.yml
+
+sphinx:
+  configuration: src/conf.py