diff --git a/package.json b/package.json
index ddd0622..ed5e494 100644
--- a/package.json
+++ b/package.json
@@ -16,6 +16,7 @@
     "functions-have-names": "^1.2.2",
     "has-tostringtag": "^1.0.0",
     "make-arrow-function": "^1.2.0",
+    "mock-property": "^1.0.0",
     "nyc": "^10.3.2",
     "safe-publish-latest": "^2.0.0",
     "string.prototype.repeat": "^1.0.0",
diff --git a/test/has.js b/test/has.js
index 026d6d5..01800de 100644
--- a/test/has.js
+++ b/test/has.js
@@ -1,34 +1,15 @@
+'use strict';
+
 var inspect = require('../');
 var test = require('tape');
-
-function withoutProperty(object, property, fn) {
-    var original;
-    if (Object.getOwnPropertyDescriptor) {
-        original = Object.getOwnPropertyDescriptor(object, property);
-    } else {
-        original = object[property];
-    }
-    delete object[property];
-    try {
-        fn();
-    } finally {
-        if (Object.getOwnPropertyDescriptor) {
-            Object.defineProperty(object, property, original);
-        } else {
-            object[property] = original;
-        }
-    }
-}
+var mockProperty = require('mock-property');
 
 test('when Object#hasOwnProperty is deleted', function (t) {
     t.plan(1);
     var arr = [1, , 3]; // eslint-disable-line no-sparse-arrays
 
-    // eslint-disable-next-line no-extend-native
-    Array.prototype[1] = 2; // this is needed to account for "in" vs "hasOwnProperty"
+    t.teardown(mockProperty(Array.prototype, 1, { value: 2 })); // this is needed to account for "in" vs "hasOwnProperty"
+    t.teardown(mockProperty(Object.prototype, 'hasOwnProperty', { 'delete': true }));
 
-    withoutProperty(Object.prototype, 'hasOwnProperty', function () {
-        t.equal(inspect(arr), '[ 1, , 3 ]');
-    });
-    delete Array.prototype[1];
+    t.equal(inspect(arr), '[ 1, , 3 ]');
 });
diff --git a/test/values.js b/test/values.js
index c83cb95..4832b9f 100644
--- a/test/values.js
+++ b/test/values.js
@@ -2,6 +2,7 @@
 
 var inspect = require('../');
 var test = require('tape');
+var mockProperty = require('mock-property');
 var hasSymbols = require('has-symbols/shams')();
 var hasToStringTag = require('has-tostringtag/shams')();
 
@@ -23,10 +24,9 @@ test('arrays with properties', function (t) {
 
 test('has', function (t) {
     t.plan(1);
-    var has = Object.prototype.hasOwnProperty;
-    delete Object.prototype.hasOwnProperty;
+    t.teardown(mockProperty(Object.prototype, 'hasOwnProperty', { 'delete': true }));
+
     t.equal(inspect({ a: 1, b: 2 }), '{ a: 1, b: 2 }');
-    Object.prototype.hasOwnProperty = has; // eslint-disable-line no-extend-native
 });
 
 test('indexOf seen', function (t) {