diff --git a/mkdocs.yml b/mkdocs.yml
index f6f6323b0538cf276ad16e7876358be452d8e9fd..ceda95b306a62a8f18b790b1248811ada4c97faa 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -37,8 +37,6 @@ markdown_extensions:
   - pymdownx.superfences
   - pymdownx.mark
   - pymdownx.emoji:
-      emoji_index: !!python/name:materialx.emoji.twemoji
-      emoji_generator: !!python/name:materialx.emoji.to_svg
   - attr_list
   - def_list
   - footnotes