diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 1a7af96..32d6c09 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -21,3 +21,8 @@ sphinx:
 python:
   install:
   - requirements: requirements.txt
+
+
+# Build offline formats
+# https://docs.readthedocs.io/en/stable/guides/enable-offline-formats.html
+formats: all