diff --git a/sphinx_immaterial/local_mathjax.py b/sphinx_immaterial/local_mathjax.py
index 7c97482c..daea3d62 100644
--- a/sphinx_immaterial/local_mathjax.py
+++ b/sphinx_immaterial/local_mathjax.py
@@ -4,7 +4,8 @@
 from sphinx.application import Sphinx
 from sphinx.config import Config
 from sphinx.errors import ExtensionError
-from sphinx.ext.mathjax import MATHJAX_URL, MathDomain
+from sphinx.domains.math import MathDomain
+from sphinx.ext.mathjax import MATHJAX_URL
 from sphinx.environment import BuildEnvironment