diff --git a/mkdocs.yml b/mkdocs.yml
index 7e9711113..e1e257564 100755
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -160,8 +160,7 @@ markdown_extensions:
         - name: mermaid
           class: mermaid-experimental
           format: !!python/name:pymdownx.superfences.fence_code_format
-  - pymdownx.tabbed:
-      alternate_style: true
+  - pymdownx.tabbed
   - pymdownx.tasklist:
       custom_checkbox: true
   - pymdownx.tilde