diff --git a/packages/mermaid/src/mermaidAPI.spec.ts b/packages/mermaid/src/mermaidAPI.spec.ts
index f11df1393..cfe8ea84e 100644
--- a/packages/mermaid/src/mermaidAPI.spec.ts
+++ b/packages/mermaid/src/mermaidAPI.spec.ts
@@ -1,5 +1,4 @@
-import { beforeEach, describe, expect, it, vi } from 'vitest';
-import assert from 'node:assert';
+import { assert, beforeEach, describe, expect, it, vi } from 'vitest';
 
 // -------------------------------------
 //  Mocks and mocking