diff --git a/mkdocs.yml b/mkdocs.yml
index 005ed81ee..989f79d8f 100755
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -153,7 +153,7 @@ markdown_extensions:
   - pymdownx.superfences:
       custom_fences:
         - name: mermaid
-          class: mermaid
+          class: mermaid-experimental
           format: !!python/name:pymdownx.superfences.fence_code_format
   - pymdownx.tabbed
   - pymdownx.tasklist: