1 files changed, 3 insertions, 3 deletions
diff --git a/src/serializers/to_json.test.ts b/src/serializers/to_json.test.ts
index 4184ab1..78f704a 100644
--- a/src/serializers/to_json.test.ts
+++ b/src/serializers/to_json.test.ts
@@ -2,11 +2,11 @@ import FlatMatter from "../flatmatter.ts";
 import ToJson from "./to_json.ts";
 
 test("Single-level configuration", () => {
-  const fm = new FlatMatter(
-    'a: true\nb: false\nc: 1\nd: 12.5\nf: "some string"'
+  const config = FlatMatter.config(
+    'a: true\nb: false\nc: 1\nd: 12.5\nf: "some string"',
   );
 
   const equal = '{"a":true,"b":false,"c":1,"d":12.5,"f":"some string"}';
 
-  expect(fm.serialize(new ToJson())).toStrictEqual(equal);
+  expect(FlatMatter.serialize(config, ToJson)).toStrictEqual(equal);
 });