diff --git a/gh-pages/mkdocs.yml b/gh-pages/mkdocs.yml
index 796cae8a4..44bfdbbef 100644
--- a/gh-pages/mkdocs.yml
+++ b/gh-pages/mkdocs.yml
@@ -40,9 +40,6 @@ markdown_extensions:
   - pymdownx.superfences
   - pymdownx.mark
   - attr_list
-  - pymdownx.emoji:
-      emoji_index: !!python/name:materialx.emoji.twemoji
-      emoji_generator: !!python/name:materialx.emoji.to_svg
 
 copyright:
   Copyright (c) 2002-2011, California Institute of Technology. All rights reserved.