diff --git a/src/infra/prototype-keys.test.ts b/src/infra/prototype-keys.test.ts
index f2bd8287226..98014b71450 100644
--- a/src/infra/prototype-keys.test.ts
+++ b/src/infra/prototype-keys.test.ts
@@ -7,7 +7,7 @@ describe("isBlockedObjectKey", () => {
       expect(isBlockedObjectKey(key)).toBe(true);
     }
 
-    for (const key of ["toString", "value", "constructorName"]) {
+    for (const key of ["toString", "value", "constructorName", "__proto__x", "Prototype"]) {
       expect(isBlockedObjectKey(key)).toBe(false);
     }
   });