diff --git a/index.js b/index.js
index 4767a2f..ff97c9c 100644
--- a/index.js
+++ b/index.js
@@ -2,6 +2,14 @@ require("core-js/es6/object");
 require("core-js/es6/array");
 require("core-js/es6/string");
 require("core-js/es6/function");
+require("core-js/fn/array/includes");
+require("core-js/fn/object/values");
+require("core-js/fn/object/entries");
+require("core-js/fn/object/get-own-property-descriptors");
+require("core-js/fn/string/pad-start");
+require("core-js/fn/string/pad-end");
+require("core-js/fn/string/trim-start");
+require("core-js/fn/string/trim-end");
 
 Symbol = exports.Symbol = global.Symbol ||
   require("core-js/es6/symbol");
diff --git a/package.json b/package.json
index f9b12b8..30fb558 100644
--- a/package.json
+++ b/package.json
@@ -25,7 +25,7 @@
   },
   "license": "MIT",
   "dependencies": {
-    "core-js": "1.2.1"
+    "core-js": "2.4.1"
   },
   "devDependencies": {
     "mocha": "~3.0.2"
diff --git a/test/tests.js b/test/tests.js
index 184ba08..6972214 100644
--- a/test/tests.js
+++ b/test/tests.js
@@ -6,6 +6,9 @@ function runTests(runtime) {
     assert.strictEqual(typeof Object.is, "function");
     assert.strictEqual(typeof Object.setPrototypeOf, "function");
     assert.strictEqual(typeof Object.getPrototypeOf, "function");
+    assert.strictEqual(typeof Object.entries, "function");
+    assert.strictEqual(typeof Object.values, "function");
+    assert.strictEqual(typeof Object.getOwnPropertyDescriptors, "function");
   });
 
   it("String has appropriate prototype methods", function () {
@@ -13,6 +16,12 @@ function runTests(runtime) {
     assert.strictEqual(typeof "asdf".endsWith, "function");
     assert.strictEqual(typeof "asdf".repeat, "function");
     assert.strictEqual(typeof "asdf".trim, "function");
+    assert.strictEqual(typeof "asdf".padStart, "function");
+    assert.strictEqual(typeof "asdf".padEnd, "function");
+    assert.strictEqual(typeof "asdf".trimStart, "function");
+    assert.strictEqual(typeof "asdf".trimEnd, "function");
+    assert.strictEqual(typeof "asdf".trimLeft, "function");
+    assert.strictEqual(typeof "asdf".trimRight, "function");
   });
 
   it("Symbol basically works", function () {
@@ -82,6 +91,7 @@ function runTests(runtime) {
 
     assert.strictEqual([2, 3, 4].find(isOdd), 3);
     assert.strictEqual([2, 3, 4].findIndex(isOdd), 1);
+    assert.strictEqual([2, 3, 4].includes(3), true);
   });
 }