diff --git a/doc/sphinx/conf.py b/doc/sphinx/conf.py
index 0d3918fbc..f233361b0 100644
--- a/doc/sphinx/conf.py
+++ b/doc/sphinx/conf.py
@@ -41,10 +41,12 @@ extensions = [
               'sphinx.ext.autodoc',
               'sphinx.ext.todo',
               'sphinx.ext.autosummary',
-              'sphinx.ext.mathjax',
               'sphinxcontrib.doxylink',
+              'sphinxcontrib.katex',  # Use KaTeX because it's faster and the main site uses it
               ]
 
+katex_version = '0.10.0-beta'
+
 autodoc_default_flags = ['members','show-inheritance','undoc-members']
 
 autoclass_content = 'both'