diff --git a/src/utils/isPlainObject.ts b/src/utils/isPlainObject.ts
index 9d1956328a..fc7ac3ab5e 100644
--- a/src/utils/isPlainObject.ts
+++ b/src/utils/isPlainObject.ts
@@ -3,12 +3,9 @@
  * @returns True if the argument appears to be a plain object.
  */
 export default function isPlainObject(obj: any): boolean {
-  if (typeof obj !== 'object' || obj === null) return false
-
-  let proto = obj
-  while (Object.getPrototypeOf(proto) !== null) {
-    proto = Object.getPrototypeOf(proto)
-  }
-
-  return Object.getPrototypeOf(obj) === proto
+  return (
+    typeof value === 'object' &&
+    value !== null &&
+    Object.getPrototypeOf(Object.getPrototypeOf(value) || {}) === null
+  )
 }