diff --git a/.readthedocs.yaml b/.readthedocs.yaml
index 97581ca..c1c1b06 100644
--- a/.readthedocs.yaml
+++ b/.readthedocs.yaml
@@ -10,4 +10,8 @@ python:
 
 sphinx:
   configuration: conf.py
-  fail_on_warning: false
\ No newline at end of file
+  fail_on_warning: false
+
+formats:
+  - pdf
+  - epub
\ No newline at end of file