diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index bc45245..20cd904 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -15,4 +15,7 @@ build:
 sphinx:
   configuration: docs/conf.py
 
+conda:
+  environment: environment.yml
+
 formats: [ ]