diff --git a/mkdocs.yml b/mkdocs.yml
index 0637a4b..188e19d 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -24,4 +24,8 @@ markdown_extensions:
   - pymdownx.highlight:
       anchor_linenums: true
       line_spans: __span
-  - pymdownx.superfences 
+  - pymdownx.superfences:
+      custom_fences:
+        - name: mermaid
+          class: mermaid
+          format: !!python/name:pymdownx.superfences.fence_code_format
\ No newline at end of file