diff --git a/types/opentype.js/index.d.ts b/types/opentype.js/index.d.ts
index 23753330bf6530..c13ffe466ddfc8 100644
--- a/types/opentype.js/index.d.ts
+++ b/types/opentype.js/index.d.ts
@@ -370,4 +370,4 @@ export function loadSync(
     },
 ): Font;
 
-export function parse(buffer: any): Font;
+export function parse(buffer: any, opt?: { lowMemory: boolean }): Font;
diff --git a/types/opentype.js/opentype.js-tests.ts b/types/opentype.js/opentype.js-tests.ts
index 8dc0fb5593f463..3450b105cb1a40 100644
--- a/types/opentype.js/opentype.js-tests.ts
+++ b/types/opentype.js/opentype.js-tests.ts
@@ -15,7 +15,7 @@ load("fonts/Roboto-Black.ttf", (err, font) => {
     }
 });
 
-let font = parse(new ArrayBuffer(0));
+let font = parse(new ArrayBuffer(0), { lowMemory: true });
 font = loadSync("fonts/Roboto-Black.ttf", { lowMemory: true });
 
 const notdefGlyph = new Glyph({