diff --git a/README.md b/README.md
index a13fd7c..34fdfe5 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,6 @@ console.log(`newObj`, newObj)
 * `Array.map` 有5%概率会丢失最后一个元素。
 * `Array.filter` 的结果有5%的概率丢失最后一个元素。
 * `Array.forEach` 会卡死一段时间。
-* `Array.splice` 的第一个参数总是比原始值增加1.
 * `setTimeout` 总是会比预期时间慢1秒才触发。
 * `Promise.then` 有10%概率不会触发。
 * `JSON.stringify` 有30%概率会把`I`(大写字母I)变成`l`(小写字母L)。
@@ -71,7 +70,6 @@ This code executes the following logic only on Sundays:
 * `Array.map` has 5% chance to drop the last element.
 * `Array.filter` has 5% chance to drop the last element.
 * `Array.forEach` will cause a significant lag.
-* The first argument to `Array.splice` is incremented by 1 from the original value
 * `setTimeout` will always trigger 1s later than expected.
 * `Promise.then` has 10% chance will not register.
 * `JSON.stringify` has 30% chance to replace all `I` into `l`.
diff --git a/index.js b/index.js
index d699483..d838ed3 100644
--- a/index.js
+++ b/index.js
@@ -73,15 +73,6 @@ const lodash = typeof require !== 'undefined' ? require('lodash') : {};
 		return result;
 	}
 
-	/**
-	 * The first argument to Array.splice is incremented by 1 from the original value
-	 * @zh Array.splice的第一个参数比原始值增加1
-	 */
-	 const _splice = Array.prototype.splice;
-	 Array.prototype.splice = function (start, deleteCount, ...items) {
-		 return _splice.call(this, +start + 1, deleteCount, ...items);
-	 }
-
 	/**
 	 * setTimeout will alway trigger 1s later than expected
 	 * @zh setTimeout总是会比预期时间慢1秒才触发