diff --git a/package.json b/package.json
index 718e7e6a2a..8239d5b9cb 100644
--- a/package.json
+++ b/package.json
@@ -62,7 +62,10 @@
   },
   "dependencies": {
     "invariant": "^2.0.0",
-    "warning": "^2.0.0"
+    "warning": "^2.0.0",
+    "lodash.isplainobject": "^3.2.0",
+    "lodash.mapvalues": "^3.0.1",
+    "lodash.pick": "^3.1.0"
   },
   "npmName": "redux",
   "npmFileMap": [
diff --git a/src/createStore.js b/src/createStore.js
index 296bf35caf..fb730c2db3 100644
--- a/src/createStore.js
+++ b/src/createStore.js
@@ -1,5 +1,5 @@
 import invariant from 'invariant';
-import isPlainObject from './utils/isPlainObject';
+import isPlainObject from 'lodash.isplainobject';
 
 /**
  * These are private action types reserved by Redux.
diff --git a/src/utils/bindActionCreators.js b/src/utils/bindActionCreators.js
index 499d91596b..65bc3798ae 100644
--- a/src/utils/bindActionCreators.js
+++ b/src/utils/bindActionCreators.js
@@ -1,5 +1,5 @@
 import invariant from 'invariant';
-import mapValues from '../utils/mapValues';
+import mapValues from 'lodash.mapvalues';
 
 function bindActionCreator(actionCreator, dispatch) {
   return (...args) => dispatch(actionCreator(...args));
diff --git a/src/utils/combineReducers.js b/src/utils/combineReducers.js
index 8ba298991a..02291125ae 100644
--- a/src/utils/combineReducers.js
+++ b/src/utils/combineReducers.js
@@ -1,7 +1,7 @@
 import { ActionTypes } from '../createStore';
-import isPlainObject from '../utils/isPlainObject';
-import mapValues from '../utils/mapValues';
-import pick from '../utils/pick';
+import isPlainObject from 'lodash.isplainobject';
+import mapValues from 'lodash.mapvalues';
+import pick from 'lodash.pick';
 import invariant from 'invariant';
 import warning from 'warning';
 
diff --git a/src/utils/isPlainObject.js b/src/utils/isPlainObject.js
deleted file mode 100644
index db3f6a0113..0000000000
--- a/src/utils/isPlainObject.js
+++ /dev/null
@@ -1,23 +0,0 @@
-var fnToString = (fn) => Function.prototype.toString.call(fn);
-
-/**
- * @param {any} obj The object to inspect.
- * @returns {boolean} True if the argument appears to be a plain object.
- */
-export default function isPlainObject(obj) {
-  if (!obj || typeof obj !== 'object') {
-    return false;
-  }
-
-  var proto = typeof obj.constructor === 'function' ? Object.getPrototypeOf(obj) : Object.prototype;
-
-  if (proto === null) {
-    return true;
-  }
-
-  var constructor = proto.constructor;
-
-  return typeof constructor === 'function'
-    && constructor instanceof constructor
-    && fnToString(constructor) === fnToString(Object);
-}
diff --git a/src/utils/mapValues.js b/src/utils/mapValues.js
deleted file mode 100644
index bb87ac551d..0000000000
--- a/src/utils/mapValues.js
+++ /dev/null
@@ -1,13 +0,0 @@
-/**
- * Applies a function to every key-value pair inside an object.
- *
- * @param {Object} obj The source object.
- * @param {Function} fn The mapper function taht receives the value and the key.
- * @returns {Object} A new object that contains the mapped values for the keys.
- */
-export default function mapValues(obj, fn) {
-  return Object.keys(obj).reduce((result, key) => {
-    result[key] = fn(obj[key], key);
-    return result;
-  }, {});
-}
diff --git a/src/utils/pick.js b/src/utils/pick.js
deleted file mode 100644
index 518c055e61..0000000000
--- a/src/utils/pick.js
+++ /dev/null
@@ -1,15 +0,0 @@
-/**
- * Picks key-value pairs from an object where values satisfy a predicate.
- *
- * @param {Object} obj The object to pick from.
- * @param {Function} fn The predicate the values must satisfy to be copied.
- * @returns {Object} The object with the values that satisfied the predicate.
- */
-export default function pick(obj, fn) {
-  return Object.keys(obj).reduce((result, key) => {
-    if (fn(obj[key])) {
-      result[key] = obj[key];
-    }
-    return result;
-  }, {});
-}
diff --git a/test/utils/isPlainObject.spec.js b/test/utils/isPlainObject.spec.js
deleted file mode 100644
index 963c7f610c..0000000000
--- a/test/utils/isPlainObject.spec.js
+++ /dev/null
@@ -1,24 +0,0 @@
-import expect from 'expect';
-import isPlainObject from '../../src/utils/isPlainObject';
-import contextify from 'contextify';
-
-describe('isPlainObject', () => {
-  it('should return true only if plain object', () => {
-    function Test() {
-      this.prop = 1;
-    }
-
-    const sandbox = contextify();
-    sandbox.run('var fromAnotherRealm = {};');
-
-    expect(isPlainObject(sandbox.fromAnotherRealm)).toBe(true);
-    expect(isPlainObject(new Test())).toBe(false);
-    expect(isPlainObject(new Date())).toBe(false);
-    expect(isPlainObject([1, 2, 3])).toBe(false);
-    expect(isPlainObject(null)).toBe(false);
-    expect(isPlainObject()).toBe(false);
-    expect(isPlainObject({ 'x': 1, 'y': 2 })).toBe(true);
-
-    sandbox.dispose();
-  });
-});
diff --git a/test/utils/mapValues.spec.js b/test/utils/mapValues.spec.js
deleted file mode 100644
index 007848af81..0000000000
--- a/test/utils/mapValues.spec.js
+++ /dev/null
@@ -1,16 +0,0 @@
-import expect from 'expect';
-import mapValues from '../../src/utils/mapValues';
-
-describe('mapValues', () => {
-  it('should return object with mapped values', () => {
-    const test = {
-      a: 'c',
-      b: 'd'
-    };
-    expect(mapValues(test, (val, key) => val + key)).toEqual({
-      a: 'ca',
-      b: 'db'
-    });
-  });
-});
-
diff --git a/test/utils/pick.spec.js b/test/utils/pick.spec.js
deleted file mode 100644
index 14e02d5db0..0000000000
--- a/test/utils/pick.spec.js
+++ /dev/null
@@ -1,16 +0,0 @@
-import expect from 'expect';
-import pick from '../../src/utils/pick';
-
-describe('pick', () => {
-  it('should return object with picked values', () => {
-    const test = {
-      name: 'lily',
-      age: 20
-    };
-    expect(
-      pick(test, x => typeof x === 'string')
-    ).toEqual({
-      name: 'lily'
-    });
-  });
-});