diff --git a/.babelrc b/.babelrc
index 86a1a91..0558174 100644
--- a/.babelrc
+++ b/.babelrc
@@ -1,4 +1,3 @@
 {
-  stage: "1",
-  loose: "all"
+  "presets": ["es2015", "stage-2"]
 }
diff --git a/.eslintrc b/.eslintrc
index c5b0c3d..82b0144 100644
--- a/.eslintrc
+++ b/.eslintrc
@@ -1,172 +1,6 @@
 {
-  "parser": "babel-eslint",          // https://github.com/babel/babel-eslint
-  "env": {                           // http://eslint.org/docs/user-guide/configuring.html#specifying-environments
-    "browser": true,                 // browser global variables
-    "node": true,                    // Node.js global variables and Node.js-specific rules
-    "mocha": true
-  },
+  "extends": "airbnb/base",
   "ecmaFeatures": {
-    "arrowFunctions": true,
-    "blockBindings": true,
-    "classes": true,
-    "defaultParams": true,
-    "destructuring": true,
-    "forOf": true,
-    "generators": false,
-    "modules": true,
-    "objectLiteralComputedProperties": true,
-    "objectLiteralDuplicateProperties": false,
-    "objectLiteralShorthandMethods": true,
-    "objectLiteralShorthandProperties": true,
-    "spread": true,
-    "superInFunctions": true,
-    "templateStrings": true,
-    "jsx": true
+    "experimentalObjectRestSpread": true,
   },
-  "rules": {
-    /**
-    * Strict mode
-    */
-    // babel inserts "use strict"; for us
-    "strict": [2, "never"],          // http://eslint.org/docs/rules/strict
-
-    /**
-    * ES6
-    */
-    "no-var": 2,                     // http://eslint.org/docs/rules/no-var
-    "prefer-const": 2,               // http://eslint.org/docs/rules/prefer-const
-
-    /**
-    * Variables
-    */
-    "no-shadow": 2,                  // http://eslint.org/docs/rules/no-shadow
-    "no-shadow-restricted-names": 2, // http://eslint.org/docs/rules/no-shadow-restricted-names
-    "no-unused-vars": [2, {          // http://eslint.org/docs/rules/no-unused-vars
-      "vars": "local",
-      "args": "after-used"
-    }],
-    "no-use-before-define": 2,       // http://eslint.org/docs/rules/no-use-before-define
-
-    /**
-    * Possible errors
-    */
-    "comma-dangle": [2, "always-multiline"],    // http://eslint.org/docs/rules/comma-dangle
-    "no-cond-assign": [2, "always"], // http://eslint.org/docs/rules/no-cond-assign
-    "no-console": 1,                 // http://eslint.org/docs/rules/no-console
-    "no-debugger": 1,                // http://eslint.org/docs/rules/no-debugger
-    "no-alert": 1,                   // http://eslint.org/docs/rules/no-alert
-    "no-constant-condition": 1,      // http://eslint.org/docs/rules/no-constant-condition
-    "no-dupe-keys": 2,               // http://eslint.org/docs/rules/no-dupe-keys
-    "no-duplicate-case": 2,          // http://eslint.org/docs/rules/no-duplicate-case
-    "no-empty": 2,                   // http://eslint.org/docs/rules/no-empty
-    "no-ex-assign": 2,               // http://eslint.org/docs/rules/no-ex-assign
-    "no-extra-boolean-cast": 0,      // http://eslint.org/docs/rules/no-extra-boolean-cast
-    "no-extra-semi": 2,              // http://eslint.org/docs/rules/no-extra-semi
-    "no-func-assign": 2,             // http://eslint.org/docs/rules/no-func-assign
-    "no-inner-declarations": 2,      // http://eslint.org/docs/rules/no-inner-declarations
-    "no-invalid-regexp": 2,          // http://eslint.org/docs/rules/no-invalid-regexp
-    "no-irregular-whitespace": 2,    // http://eslint.org/docs/rules/no-irregular-whitespace
-    "no-obj-calls": 2,               // http://eslint.org/docs/rules/no-obj-calls
-    "no-sparse-arrays": 2,           // http://eslint.org/docs/rules/no-sparse-arrays
-    "no-unreachable": 2,             // http://eslint.org/docs/rules/no-unreachable
-    "use-isnan": 2,                  // http://eslint.org/docs/rules/use-isnan
-    "block-scoped-var": 0,           // http://eslint.org/docs/rules/block-scoped-var
-
-    /**
-    * Best practices
-    */
-    "consistent-return": 2,          // http://eslint.org/docs/rules/consistent-return
-    "curly": [2, "multi-line"],      // http://eslint.org/docs/rules/curly
-    "default-case": 2,               // http://eslint.org/docs/rules/default-case
-    "dot-notation": [2, {            // http://eslint.org/docs/rules/dot-notation
-      "allowKeywords": true
-    }],
-    "eqeqeq": 2,                     // http://eslint.org/docs/rules/eqeqeq
-    "guard-for-in": 2,               // http://eslint.org/docs/rules/guard-for-in
-    "no-caller": 2,                  // http://eslint.org/docs/rules/no-caller
-    "no-else-return": 2,             // http://eslint.org/docs/rules/no-else-return
-    "no-eq-null": 2,                 // http://eslint.org/docs/rules/no-eq-null
-    "no-eval": 2,                    // http://eslint.org/docs/rules/no-eval
-    "no-extend-native": 2,           // http://eslint.org/docs/rules/no-extend-native
-    "no-extra-bind": 2,              // http://eslint.org/docs/rules/no-extra-bind
-    "no-fallthrough": 2,             // http://eslint.org/docs/rules/no-fallthrough
-    "no-floating-decimal": 2,        // http://eslint.org/docs/rules/no-floating-decimal
-    "no-implied-eval": 2,            // http://eslint.org/docs/rules/no-implied-eval
-    "no-lone-blocks": 2,             // http://eslint.org/docs/rules/no-lone-blocks
-    "no-loop-func": 2,               // http://eslint.org/docs/rules/no-loop-func
-    "no-multi-str": 2,               // http://eslint.org/docs/rules/no-multi-str
-    "no-native-reassign": 2,         // http://eslint.org/docs/rules/no-native-reassign
-    "no-new": 2,                     // http://eslint.org/docs/rules/no-new
-    "no-new-func": 2,                // http://eslint.org/docs/rules/no-new-func
-    "no-new-wrappers": 2,            // http://eslint.org/docs/rules/no-new-wrappers
-    "no-octal": 2,                   // http://eslint.org/docs/rules/no-octal
-    "no-octal-escape": 2,            // http://eslint.org/docs/rules/no-octal-escape
-    "no-param-reassign": 2,          // http://eslint.org/docs/rules/no-param-reassign
-    "no-proto": 2,                   // http://eslint.org/docs/rules/no-proto
-    "no-redeclare": 2,               // http://eslint.org/docs/rules/no-redeclare
-    "no-return-assign": 2,           // http://eslint.org/docs/rules/no-return-assign
-    "no-script-url": 2,              // http://eslint.org/docs/rules/no-script-url
-    "no-self-compare": 2,            // http://eslint.org/docs/rules/no-self-compare
-    "no-sequences": 2,               // http://eslint.org/docs/rules/no-sequences
-    "no-throw-literal": 2,           // http://eslint.org/docs/rules/no-throw-literal
-    "no-with": 2,                    // http://eslint.org/docs/rules/no-with
-    "radix": 2,                      // http://eslint.org/docs/rules/radix
-    "vars-on-top": 2,                // http://eslint.org/docs/rules/vars-on-top
-    "wrap-iife": [2, "any"],         // http://eslint.org/docs/rules/wrap-iife
-    "yoda": 2,                       // http://eslint.org/docs/rules/yoda
-
-    /**
-    * Style
-    */
-    "indent": [2, 2],                // http://eslint.org/docs/rules/indent
-    "brace-style": [2,               // http://eslint.org/docs/rules/brace-style
-    "1tbs", {
-      "allowSingleLine": true
-    }],
-    "quotes": [
-      2, "single", "avoid-escape"    // http://eslint.org/docs/rules/quotes
-    ],
-    "camelcase": [2, {               // http://eslint.org/docs/rules/camelcase
-      "properties": "never"
-    }],
-    "comma-spacing": [2, {           // http://eslint.org/docs/rules/comma-spacing
-      "before": false,
-      "after": true
-    }],
-    "comma-style": [2, "last"],      // http://eslint.org/docs/rules/comma-style
-    "eol-last": 2,                   // http://eslint.org/docs/rules/eol-last
-    "func-names": 1,                 // http://eslint.org/docs/rules/func-names
-    "key-spacing": [2, {             // http://eslint.org/docs/rules/key-spacing
-      "beforeColon": false,
-      "afterColon": true
-    }],
-    "new-cap": [2, {                 // http://eslint.org/docs/rules/new-cap
-      "newIsCap": true
-    }],
-    "no-multiple-empty-lines": [2, { // http://eslint.org/docs/rules/no-multiple-empty-lines
-      "max": 2
-    }],
-    "no-nested-ternary": 2,          // http://eslint.org/docs/rules/no-nested-ternary
-    "no-new-object": 2,              // http://eslint.org/docs/rules/no-new-object
-    "no-spaced-func": 2,             // http://eslint.org/docs/rules/no-spaced-func
-    "no-trailing-spaces": 2,         // http://eslint.org/docs/rules/no-trailing-spaces
-    "no-extra-parens": [2, "functions"], // http://eslint.org/docs/rules/no-extra-parens
-    "no-underscore-dangle": 0,       // http://eslint.org/docs/rules/no-underscore-dangle
-    "one-var": [2, "never"],         // http://eslint.org/docs/rules/one-var
-    "padded-blocks": [2, "never"],   // http://eslint.org/docs/rules/padded-blocks
-    "semi": [2, "always"],           // http://eslint.org/docs/rules/semi
-    "semi-spacing": [2, {            // http://eslint.org/docs/rules/semi-spacing
-      "before": false,
-      "after": true
-    }],
-    "space-after-keywords": 2,       // http://eslint.org/docs/rules/space-after-keywords
-    "space-before-blocks": 2,        // http://eslint.org/docs/rules/space-before-blocks
-    "space-before-function-paren": [2, "never"], // http://eslint.org/docs/rules/space-before-function-paren
-    "space-infix-ops": 2,            // http://eslint.org/docs/rules/space-infix-ops
-    "space-return-throw-case": 2,    // http://eslint.org/docs/rules/space-return-throw-case
-    "spaced-comment": [2, "always",  {// http://eslint.org/docs/rules/spaced-comment
-      "exceptions": ["-", "+"],
-      "markers": ["=", "!"]           // space here to support sprockets directives
-    }]
-  }
 }
diff --git a/gulpfile.js b/gulpfile.js
index f89194d..babeba3 100644
--- a/gulpfile.js
+++ b/gulpfile.js
@@ -17,42 +17,42 @@ var createWebpackConfig = require('./createWebpackConfig.js');
 // when they're loaded
 require('babel-core/register');
 
-gulp.task('clean', function(cb) {
+gulp.task('clean', function (cb) {
   rimraf('./dist', cb);
 });
 
-gulp.task('static', function() {
+gulp.task('static', function () {
   return gulp.src(['*.js', 'lib/**/*.js', 'test/**/*.js'])
     .pipe(eslint())
     .pipe(eslint.format())
     .pipe(eslint.failAfterError());
 });
 
-gulp.task('nsp', function(cb) {
+gulp.task('nsp', function (cb) {
   nsp({ package: path.join(__dirname, 'package.json') }, cb);
 });
 
 gulp.task('test', ['test:karma', 'test:node']);
 
-gulp.task('test:node', function() {
+gulp.task('test:node', function () {
   return gulp.src('test/**/*.js')
-    .pipe(mocha({reporter: 'dot'}));
+    .pipe(mocha({ reporter: 'dot' }));
 });
 
-gulp.task('test:karma', function(done) {
+gulp.task('test:karma', function (done) {
   new KarmaServer({
     configFile: path.join(__dirname, 'karma.conf.js'),
     singleRun: true,
   }, done).start();
 });
 
-gulp.task('babel', function() {
+gulp.task('babel', function () {
   return gulp.src('lib/**/*.js')
     .pipe(babel())
     .pipe(gulp.dest('dist'));
 });
 
-gulp.task('watch', function() {
+gulp.task('watch', function () {
   gulp.start(['test:node']);
   gulp.watch(['lib/**/*.js', 'test/**/*.js'], ['test:node']);
   new KarmaServer({
@@ -62,7 +62,7 @@ gulp.task('watch', function() {
 
 gulp.task('webpack', ['webpack:standalone', 'webpack:standalone:min']);
 
-gulp.task('webpack:standalone', function() {
+gulp.task('webpack:standalone', function () {
   var config = createWebpackConfig({ filename: 'updeep-standalone.js' });
 
   return gulp.src('lib/index.js')
@@ -70,7 +70,7 @@ gulp.task('webpack:standalone', function() {
     .pipe(gulp.dest('dist/umd/'));
 });
 
-gulp.task('webpack:standalone:min', function() {
+gulp.task('webpack:standalone:min', function () {
   var config = createWebpackConfig({
     filename: 'updeep-standalone.min.js',
     minify: true,
@@ -84,7 +84,7 @@ gulp.task('webpack:standalone:min', function() {
 
 gulp.task('build', ['babel', 'webpack']);
 
-gulp.task('build:clean', ['clean'], function(done) {
+gulp.task('build:clean', ['clean'], function (done) {
   gulp.start('build', done);
 });
 
diff --git a/karma.conf.js b/karma.conf.js
index 87e6be3..9544a4c 100644
--- a/karma.conf.js
+++ b/karma.conf.js
@@ -2,7 +2,7 @@
 
 var createWebpackConfig = require('./createWebpackConfig');
 
-module.exports = function(config) {
+module.exports = function (config) {
   config.set({
 
     // base path that will be used to resolve all patterns (eg. files, exclude)
@@ -52,7 +52,8 @@ module.exports = function(config) {
 
 
     // level of logging
-    // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN || config.LOG_INFO || config.LOG_DEBUG
+    // possible values: config.LOG_DISABLE || config.LOG_ERROR || config.LOG_WARN ||
+    // config.LOG_INFO || config.LOG_DEBUG
     logLevel: config.LOG_INFO,
 
     // start these browsers
diff --git a/lib/is.js b/lib/is.js
index 0e3eb6d..2551245 100644
--- a/lib/is.js
+++ b/lib/is.js
@@ -5,9 +5,9 @@ function is(path, predicate, object) {
   const parts = splitPath(path);
 
   let rest = object;
-  let part;
-  for (part of parts) {
+  for (let i = 0; i < parts.length; ++i) {
     if (typeof rest === 'undefined') return false;
+    const part = parts[i];
     rest = rest[part];
   }
 
diff --git a/lib/update.js b/lib/update.js
index 72c85c9..b1edacf 100644
--- a/lib/update.js
+++ b/lib/update.js
@@ -16,13 +16,13 @@ function resolveUpdates(updates, object) {
     let updatedValue = value;
 
     if (!Array.isArray(value) && value !== null && typeof value === 'object') {
-      updatedValue = update(value, object[key]);
+      updatedValue = update(value, object[key]); // eslint-disable-line no-use-before-define
     } else if (typeof value === 'function') {
       updatedValue = value(object[key]);
     }
 
     if (object[key] !== updatedValue) {
-      acc[key] = updatedValue;
+      acc[key] = updatedValue; // eslint-disable-line no-param-reassign
     }
 
     return acc;
diff --git a/lib/util/curry.js b/lib/util/curry.js
index 2f9157c..0fbc810 100644
--- a/lib/util/curry.js
+++ b/lib/util/curry.js
@@ -13,7 +13,8 @@ function countArguments(args, max) {
 }
 
 export function curry1(fn) {
-  return function curried(a, ...[b, c]) {
+  return function curried(a, ...args) {
+    const [b, c] = args;
     const n = countArguments(arguments);
 
     if (n >= 1) return fn(a, b, c);
@@ -22,7 +23,8 @@ export function curry1(fn) {
 }
 
 export function curry2(fn) {
-  return function curried(a, b, ...[c, d]) {
+  return function curried(a, b, ...args) {
+    const [c, d] = args;
     const n = countArguments(arguments, 2);
 
     if (b === _ || c === _ || d === _) {
@@ -40,7 +42,8 @@ export function curry2(fn) {
 }
 
 export function curry3(fn) {
-  return function curried(a, b, c, ...[d, e]) {
+  return function curried(a, b, c, ...args) {
+    const [d, e] = args;
     const n = countArguments(arguments, 3);
 
     if (c === _ || d === _ || e === _) {
@@ -68,11 +71,14 @@ export function curry3(fn) {
 }
 
 export function curry4(fn) {
-  return function curried(a, b, c, d, ...[e, f]) {
+  return function curried(a, b, c, d, ...args) {
+    const [e, f] = args;
     const n = countArguments(arguments, 4);
 
     if (d === _ || e === _ || f === _) {
-      throw new Error('Can only use placeholder on first, second or third argument of this function.');
+      throw new Error(
+        'Can only use placeholder on first, second or third argument of this function.'
+      );
     }
 
     if (n >= 4) {
diff --git a/package.json b/package.json
index 0ed7c4d..ecd588f 100644
--- a/package.json
+++ b/package.json
@@ -32,22 +32,22 @@
     "lodash": "^3.0.0"
   },
   "devDependencies": {
-    "babel": "^5.8.21",
-    "babel-core": "^5.5.0",
-    "babel-eslint": "^4.0.5",
-    "babel-loader": "^5.3.2",
+    "babel-core": "^6.4.0",
+    "babel-loader": "^6.2.1",
+    "babel-preset-es2015": "^6.3.13",
+    "babel-preset-stage-2": "^6.3.13",
     "benchmark": "^1.0.0",
     "chai": "^3.2.0",
-    "eslint": "^0.24.1",
-    "eslint-config-airbnb": "0.0.7",
+    "eslint": "^1.10.3",
+    "eslint-config-airbnb": "3.1.0",
     "exports-loader": "^0.6.2",
     "gulp": "^3.6.0",
-    "gulp-babel": "^5.1.0",
-    "gulp-eslint": "^0.15.0",
+    "gulp-babel": "^6.1.1",
+    "gulp-eslint": "^1.1.1",
     "gulp-mocha": "^2.0.0",
     "gulp-nsp": "^2.0.0",
     "karma": "^0.13.3",
-    "karma-babel-preprocessor": "^5.2.1",
+    "karma-babel-preprocessor": "^6.0.1",
     "karma-chrome-launcher": "^0.2.0",
     "karma-mocha": "^0.2.0",
     "karma-mocha-reporter": "^1.0.4",
diff --git a/perf/index.js b/perf/index.js
index 553d872..f17b92a 100644
--- a/perf/index.js
+++ b/perf/index.js
@@ -76,9 +76,9 @@ const fnDestructure = (...args) => {
   return fn(a, b, c, d, e);
 };
 const applyVsDestructure = createSuite('apply vs destructure', {
-  'control': () => fnControl(1, 2, 3, 4, 5),
-  'apply': () => fnApply(1, 2, 3, 4, 5),
-  'destructure': () => fnDestructure(1, 2, 3, 4, 5),
+  control: () => fnControl(1, 2, 3, 4, 5),
+  apply: () => fnApply(1, 2, 3, 4, 5),
+  destructure: () => fnDestructure(1, 2, 3, 4, 5),
 });
 
 curryVsLodash();
diff --git a/test/.eslintrc b/test/.eslintrc
index 3a2e250..19e6180 100644
--- a/test/.eslintrc
+++ b/test/.eslintrc
@@ -1,4 +1,7 @@
 {
+  "env": {
+    "mocha": true
+  },
   "rules": {
     "no-unused-expressions": 0
   }
diff --git a/test/if-spec.js b/test/if-spec.js
index 7f7f485..1a9a480 100644
--- a/test/if-spec.js
+++ b/test/if-spec.js
@@ -7,7 +7,7 @@ describe('u.if', () => {
     let result = u.if(false, { b: 1 }, object);
     expect(result).to.eql(object);
 
-    result = u({ x: u.if(false, 1)}, {});
+    result = u({ x: u.if(false, 1) }, {});
     expect(result).to.eql({});
   });
 
diff --git a/test/map-spec.js b/test/map-spec.js
index 198c00b..eafa004 100644
--- a/test/map-spec.js
+++ b/test/map-spec.js
@@ -46,7 +46,7 @@ describe('u.map', () => {
     const setToKey = (_, key) => key;
     const result = u.map(u.map(setToKey), object);
 
-    expect(result).to.eql( {
+    expect(result).to.eql({
       a: { x: 'x' },
       b: [0, 1],
     });
@@ -61,7 +61,7 @@ describe('u.map', () => {
       b: u.map(setToKey),
     }, object);
 
-    expect(result).to.eql( {
+    expect(result).to.eql({
       b: [0, 1],
     });
   });
diff --git a/test/updeep-spec.js b/test/updeep-spec.js
index 22ea60f..91bdbd7 100644
--- a/test/updeep-spec.js
+++ b/test/updeep-spec.js
@@ -108,7 +108,7 @@ describe('updeep', () => {
   });
 
   it('assigns null values', () => {
-    expect(u({isNull: null}, {})).to.eql({isNull: null});
+    expect(u({ isNull: null }, {})).to.eql({ isNull: null });
   });
 
   it('can use a placeholder to partially apply', () => {