diff --git a/.readthedocs.yml b/.readthedocs.yml
index 7984836..d0d5b9c 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -16,7 +16,7 @@ sphinx:
   configuration: docs/conf.py
 
 conda:
-  file: environment_doc.yml
+  environment: environment_doc.yml
 
 # Optionally set the version of Python and requirements required to build your docs
 python: