diff --git a/docs/conf.py b/docs/conf.py
index cd0c613c..dcc45124 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -280,7 +280,7 @@ latex_elements = {
      'pointsize': '10pt',
 
     'fontpkg': r'''
-\setmainfont{XCharter}
+\setmainfont{Open Sans}
 \setsansfont{Lato}
 \setmonofont{DejaVu Sans Mono}
 ''',