diff --git a/index.js b/index.js
index 9594c69..606588a 100644
--- a/index.js
+++ b/index.js
@@ -17,11 +17,8 @@
 
 'use strict';
 
-var forEach = require('array.prototype.foreach');
-var entries = require('object.entries');
 var warning = require('warning');
 var has = require('has');
-var trim = require('string.prototype.trim');
 
 var warn = function warn(message) {
   warning(false, message);
@@ -119,10 +116,10 @@ var defaultPluralRules = {
 
 function langToTypeMap(mapping) {
   var ret = {};
-  forEach(entries(mapping), function (entry) {
+  Object.entries(mapping).forEach(function (entry) {
     var type = entry[0];
     var langs = entry[1];
-    forEach(langs, function (lang) {
+    langs.forEach(function (lang) {
       ret[lang] = type;
     });
   });
@@ -242,7 +239,7 @@ function transformPhrase(
       options.smart_count
     );
 
-    result = trim(texts[pluralTypeWithCount] || texts[0]);
+    result = (texts[pluralTypeWithCount] || texts[0]).trim();
   }
 
   // Interpolate: Creates a `RegExp` object for each interpolation placeholder.
@@ -326,7 +323,7 @@ Polyglot.prototype.locale = function (newLocale) {
 //
 // This feature is used internally to support nested phrase objects.
 Polyglot.prototype.extend = function (morePhrases, prefix) {
-  forEach(entries(morePhrases || {}), function (entry) {
+  Object.entries(morePhrases || {}).forEach(function (entry) {
     var key = entry[0];
     var phrase = entry[1];
     var prefixedKey = prefix ? prefix + '.' + key : key;
@@ -353,7 +350,7 @@ Polyglot.prototype.unset = function (morePhrases, prefix) {
   if (typeof morePhrases === 'string') {
     delete this.phrases[morePhrases];
   } else {
-    forEach(entries(morePhrases || {}), function (entry) {
+    Object.entries(morePhrases || {}).forEach(function (entry) {
       var key = entry[0];
       var phrase = entry[1];
       var prefixedKey = prefix ? prefix + '.' + key : key;
diff --git a/package.json b/package.json
index 7aca50a..fccc496 100644
--- a/package.json
+++ b/package.json
@@ -28,10 +28,7 @@
   ],
   "author": "Spike Brehm <spike@airbnb.com>",
   "dependencies": {
-    "array.prototype.foreach": "^1.0.2",
     "has": "^1.0.3",
-    "object.entries": "^1.1.5",
-    "string.prototype.trim": "^1.2.6",
     "warning": "^4.0.3"
   },
   "devDependencies": {
@@ -46,7 +43,6 @@
     "mocha": "^3.5.3",
     "nyc": "^10.3.2",
     "safe-publish-latest": "^2.0.0",
-    "string.prototype.matchall": "^4.0.7",
     "uglify-js": "^2.7.3"
   },
   "license": "BSD-2-Clause"
diff --git a/test/index.js b/test/index.js
index b8cae51..ee9376c 100644
--- a/test/index.js
+++ b/test/index.js
@@ -2,9 +2,7 @@
 
 var Polyglot = require('../');
 var expect = require('chai').expect;
-var forEach = require('array.prototype.foreach');
 var iterate = require('iterate-iterator');
-var matchAll = require('string.prototype.matchall');
 
 describe('t', function () {
   var phrases = {
@@ -139,7 +137,7 @@ describe('t', function () {
         var i = 0;
 
         var children = [];
-        iterate(matchAll(phrase, interpolationRegex), function (match) {
+        iterate(phrase.matchAll(interpolationRegex), function (match) {
           if (match.index > i) {
             children.push(phrase.slice(i, match.index));
           }
@@ -368,25 +366,25 @@ describe('locale-specific pluralization rules', function () {
 
     var polyglotLocale = new Polyglot({ phrases: phrases, locale: 'hr-HR' });
 
-    forEach([1, 21, 31, 101], function (c) {
+    [1, 21, 31, 101].forEach(function (c) {
       expect(polyglotLocale.t('n_votes', c)).to.equal(c + ' glas');
     });
-    forEach([2, 3, 4, 22, 23, 24, 32, 33, 34], function (c) {
+    [2, 3, 4, 22, 23, 24, 32, 33, 34].forEach(function (c) {
       expect(polyglotLocale.t('n_votes', c)).to.equal(c + ' glasa');
     });
-    forEach([0, 5, 6, 11, 12, 13, 14, 15, 16, 17, 25, 26, 35, 36, 112, 113, 114], function (c) {
+    [0, 5, 6, 11, 12, 13, 14, 15, 16, 17, 25, 26, 35, 36, 112, 113, 114].forEach(function (c) {
       expect(polyglotLocale.t('n_votes', c)).to.equal(c + ' glasova');
     });
 
     var polyglotLanguageCode = new Polyglot({ phrases: phrases, locale: 'hr' });
 
-    forEach([1, 21, 31, 101], function (c) {
+    [1, 21, 31, 101].forEach(function (c) {
       expect(polyglotLanguageCode.t('n_votes', c)).to.equal(c + ' glas');
     });
-    forEach([2, 3, 4, 22, 23, 24, 32, 33, 34], function (c) {
+    [2, 3, 4, 22, 23, 24, 32, 33, 34].forEach(function (c) {
       expect(polyglotLanguageCode.t('n_votes', c)).to.equal(c + ' glasa');
     });
-    forEach([0, 5, 6, 11, 12, 13, 14, 15, 16, 17, 25, 26, 35, 36, 112, 113, 114], function (c) {
+    [0, 5, 6, 11, 12, 13, 14, 15, 16, 17, 25, 26, 35, 36, 112, 113, 114].forEach(function (c) {
       expect(polyglotLanguageCode.t('n_votes', c)).to.equal(c + ' glasova');
     });
   });
@@ -512,15 +510,15 @@ describe('locale-specific pluralization rules', function () {
 
     var polyglot = new Polyglot({ phrases: phrases, locale: 'sl-SL' });
 
-    forEach([1, 12301, 101, 1001, 201, 301], function (c) {
+    [1, 12301, 101, 1001, 201, 301].forEach(function (c) {
       expect(polyglot.t('n_votes', c)).to.equal(c + ' komentar');
     });
 
-    forEach([2, 102, 202, 302], function (c) {
+    [2, 102, 202, 302].forEach(function (c) {
       expect(polyglot.t('n_votes', c)).to.equal(c + ' komentarja');
     });
 
-    forEach([0, 11, 12, 13, 14, 52, 53], function (c) {
+    [0, 11, 12, 13, 14, 52, 53].forEach(function (c) {
       expect(polyglot.t('n_votes', c)).to.equal(c + ' komentarjev');
     });
   });