diff --git a/.readthedocs.yml b/.readthedocs.yml
index 578c72f2..7025a808 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -5,7 +5,6 @@ sphinx:
 
 formats:
   - pdf
-  - epub
 
 python:
   version: 3.8