diff --git a/.readthedocs.yml b/.readthedocs.yml
index c97b55308b..6ccbcc4048 100644
--- a/.readthedocs.yml
+++ b/.readthedocs.yml
@@ -3,8 +3,7 @@
 build:
   image: latest
 
-formats:
-  - pdf
+formats: []
 
 python:
   pip_install: true
diff --git a/docs/conf.py b/docs/conf.py
index 64b14e2c72..1c701c3761 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -130,6 +130,8 @@
 
 # -- Options for LaTeX output ------------------------------------------------
 
+latex_engine = 'xelatex'
+
 latex_elements = {
     # The paper size ('letterpaper' or 'a4paper').
     #