diff --git a/everforest-ant-dark.css b/everforest-ant-dark.css
index 1eb6338..d12f43d 100644
--- a/everforest-ant-dark.css
+++ b/everforest-ant-dark.css
@@ -212,7 +212,7 @@ html {
     --tooltip-background-color: var(--background-gray);
     --link-color: var(--light-turquoise);
 
-    --mermaid-theme: default;
+    --mermaid-theme: dark;
 }