diff --git a/README.md b/README.md
index 9e2bd5c..d509531 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,22 @@ string-similarity
 
 Finds degree of similarity between two strings, based on [Dice's Coefficient](http://en.wikipedia.org/wiki/S%C3%B8rensen%E2%80%93Dice_coefficient), which is mostly better than [Levenshtein distance](http://en.wikipedia.org/wiki/Levenshtein_distance).
 
+## Table of Contents
+
+* [Usage](#usage)
+* [API](#api)
+    * [compareTwoStrings(string1, string2)](#comparetwostringsstring1-string2)
+        * [Arguments](#arguments)
+        * [Returns](#returns)
+        * [Examples](#examples)
+    * [findBestMatch(mainString, targetStrings)](#findbestmatchmainstring-targetstrings)
+        * [Arguments](#arguments-1)
+        * [Returns](#returns-1)
+        * [Examples](#examples-1)
+* [Release Notes](#release-notes)
+    * [2.0.0](#200)
+
+
 ## Usage
 Install using:
 
@@ -89,5 +105,12 @@ stringSimilarity.findBestMatch('Olive-green table for sale, in extremely good co
      rating: 0.7073170731707317 } }
 ```
 
+## Release Notes
+
+### 2.0.0
+* Removed production dependencies
+* Updated to ES6 (this breaks backward-compatibility for pre-ES6 apps)
+
+
 ![Build status](https://codeship.com/projects/2aa453d0-0959-0134-8a76-4abcb29fe9b4/status?branch=master)
 [![Known Vulnerabilities](https://snyk.io/test/github/aceakash/string-similarity/badge.svg)](https://snyk.io/test/github/aceakash/string-similarity)
diff --git a/compare-strings.js b/compare-strings.js
index bdbcfdb..aa65181 100644
--- a/compare-strings.js
+++ b/compare-strings.js
@@ -1,25 +1,7 @@
-function flattenDeep (arr) {
-	return Array.isArray(arr) ? arr.reduce((a, b) => a.concat(flattenDeep(b)) , []) : [arr];
-}
-
-function areArgsValid (mainString, targetStrings) {
-	if (typeof mainString !== 'string') return false;
-	if (!Array.isArray(targetStrings)) return false;
-	if (!targetStrings.length) return false;
-	if (targetStrings.find(s => typeof s !== 'string')) return false;
-	return true;
-}
-
-function letterPairs (str) {
-	const pairs = [];
-	for (let i = 0, max = str.length - 1; i < max; i++) pairs[i] = str.substring(i, i + 2);
-	return pairs;
-}
-
-function wordLetterPairs (str) {
-	const pairs = str.toUpperCase().split(' ').map(letterPairs);
-	return flattenDeep(pairs);
-}
+module.exports = {
+	compareTwoStrings,
+	findBestMatch
+};
 
 function compareTwoStrings (str1, str2) {
 	if (!str1.length && !str2.length) return 1;                    // if both are empty strings
@@ -49,8 +31,25 @@ function findBestMatch (mainString, targetStrings) {
 	return { ratings, bestMatch };
 }
 
+function flattenDeep (arr) {
+	return Array.isArray(arr) ? arr.reduce((a, b) => a.concat(flattenDeep(b)) , []) : [arr];
+}
 
-module.exports = {
-	compareTwoStrings,
-	findBestMatch
-};
+function areArgsValid (mainString, targetStrings) {
+	if (typeof mainString !== 'string') return false;
+	if (!Array.isArray(targetStrings)) return false;
+	if (!targetStrings.length) return false;
+	if (targetStrings.find(s => typeof s !== 'string')) return false;
+	return true;
+}
+
+function letterPairs (str) {
+	const pairs = [];
+	for (let i = 0, max = str.length - 1; i < max; i++) pairs[i] = str.substring(i, i + 2);
+	return pairs;
+}
+
+function wordLetterPairs (str) {
+	const pairs = str.toUpperCase().split(' ').map(letterPairs);
+	return flattenDeep(pairs);
+}
diff --git a/package-lock.json b/package-lock.json
index d3c5184..d6fec0e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -33,9 +33,9 @@
       "dev": true
     },
     "glob": {
-      "version": "7.1.2",
-      "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.2.tgz",
-      "integrity": "sha512-MJTUg1kjuLeQCJ+ccE4Vpa6kKVXkPYJ2mOCQyUuKLcLQsdrMCpBPUi8qVE6+YuaJkozeA9NusTAw3hLr8Xe5EQ==",
+      "version": "7.1.3",
+      "resolved": "https://registry.npmjs.org/glob/-/glob-7.1.3.tgz",
+      "integrity": "sha512-vcfuiIxogLV4DlGBHIUOwI0IbrJ8HWPc4MU7HzviGeNho/UJDfi6B5p3sHeWIQ0KGIU0Jpxi5ZHxemQfLkkAwQ==",
       "dev": true,
       "requires": {
         "fs.realpath": "^1.0.0",
@@ -78,31 +78,6 @@
       "integrity": "sha512-pa9tbBWgU0EE4SWgc85T4sa886ufuQdsgruQANhECYjwqgV4z7Vw/499aCaP8ZH79JDS4vhm8doDG9HO4+e4sA==",
       "dev": true
     },
-    "lodash.every": {
-      "version": "4.6.0",
-      "resolved": "https://registry.npmjs.org/lodash.every/-/lodash.every-4.6.0.tgz",
-      "integrity": "sha1-64mYS+vENkJ5uzrvu9HKGb+mxqc="
-    },
-    "lodash.flattendeep": {
-      "version": "4.4.0",
-      "resolved": "https://registry.npmjs.org/lodash.flattendeep/-/lodash.flattendeep-4.4.0.tgz",
-      "integrity": "sha1-+wMJF/hqMTTlvJvsDWngAT3f7bI="
-    },
-    "lodash.foreach": {
-      "version": "4.5.0",
-      "resolved": "https://registry.npmjs.org/lodash.foreach/-/lodash.foreach-4.5.0.tgz",
-      "integrity": "sha1-Gmo16s5AEoDH8G3d7DUWWrJ+PlM="
-    },
-    "lodash.map": {
-      "version": "4.6.0",
-      "resolved": "https://registry.npmjs.org/lodash.map/-/lodash.map-4.6.0.tgz",
-      "integrity": "sha1-dx7Hg540c9nEzeKLGTlMNWL09tM="
-    },
-    "lodash.maxby": {
-      "version": "4.6.0",
-      "resolved": "https://registry.npmjs.org/lodash.maxby/-/lodash.maxby-4.6.0.tgz",
-      "integrity": "sha1-CCJABo88eiJ6oAqDgOTzjPB4bj0="
-    },
     "minimatch": {
       "version": "3.0.4",
       "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.0.4.tgz",
diff --git a/package.json b/package.json
index 0468611..f571169 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "string-similarity",
-  "version": "1.2.2",
+  "version": "2.0.0",
   "description": "Finds degree of similarity between strings, based on Dice's Coefficient, which is mostly better than Levenshtein distance.",
   "main": "compare-strings.js",
   "scripts": {