diff --git a/README.md b/README.md
index 8e2d48dfd..e81e14735 100644
--- a/README.md
+++ b/README.md
@@ -16,7 +16,7 @@ This is a liquid implementation for both Node.js and browsers. Website: <http://
 
 * Fully compatible to [shopify][shopify/liquid], with all [tags][tags] and [filters][filters] implemented
 * Support layout(extend) and include syntax
-* In pure JavaScript with [any-promise][any-promise] as the only one dependency
+* In pure JavaScript with Promise-based API
 
 **Differences**
 
@@ -47,6 +47,7 @@ Though being compatible with [Ruby Liquid](https://github.com/shopify/liquid) is
 Install as Node.js dependency:
 
 ```bash
+# You'll need a promise-polyfill for Node.js < 4
 npm install --save liquidjs
 ```
 
diff --git a/index.js b/index.js
index 20fe1c917..13ee3276f 100644
--- a/index.js
+++ b/index.js
@@ -14,7 +14,6 @@ const Parser = require('./src/parser')
 const Syntax = require('./src/syntax.js')
 const tags = require('./tags')
 const filters = require('./filters')
-const Promise = require('any-promise')
 const anySeries = require('./src/util/promise.js').anySeries
 const Errors = require('./src/util/error.js')
 
diff --git a/package.json b/package.json
index be34e10ba..2ade1ca26 100644
--- a/package.json
+++ b/package.json
@@ -36,7 +36,6 @@
   },
   "homepage": "https://github.com/harttle/liquidjs#readme",
   "dependencies": {
-    "any-promise": "^1.3.0",
     "resolve-url": "^0.2.1"
   },
   "browser": {
diff --git a/src/render.js b/src/render.js
index c4b72125a..2428d64aa 100644
--- a/src/render.js
+++ b/src/render.js
@@ -1,5 +1,4 @@
 const Syntax = require('./syntax.js')
-const Promise = require('any-promise')
 const mapSeries = require('./util/promise.js').mapSeries
 const RenderBreakError = require('./util/error.js').RenderBreakError
 const RenderError = require('./util/error.js').RenderError
diff --git a/src/tag.js b/src/tag.js
index 4411048a7..720636beb 100644
--- a/src/tag.js
+++ b/src/tag.js
@@ -1,5 +1,4 @@
 const lexical = require('./lexical.js')
-const Promise = require('any-promise')
 const Syntax = require('./syntax.js')
 const assert = require('./util/assert.js')
 
diff --git a/src/util/promise.js b/src/util/promise.js
index 8f3c452d9..14011c19c 100644
--- a/src/util/promise.js
+++ b/src/util/promise.js
@@ -1,5 +1,3 @@
-const Promise = require('any-promise')
-
 /*
  * Call functions in serial until someone resolved.
  * @param {Array} iterable the array to iterate with.
diff --git a/tags/assign.js b/tags/assign.js
index eb42cda59..4cd6c50cb 100644
--- a/tags/assign.js
+++ b/tags/assign.js
@@ -1,6 +1,5 @@
 const Liquid = require('..')
 const lexical = Liquid.lexical
-const Promise = require('any-promise')
 const re = new RegExp(`(${lexical.identifier.source})\\s*=(.*)`)
 const assert = require('../src/util/assert.js')
 
diff --git a/tags/cycle.js b/tags/cycle.js
index 0cb79a0c9..96cb4075e 100644
--- a/tags/cycle.js
+++ b/tags/cycle.js
@@ -1,5 +1,4 @@
 const Liquid = require('..')
-const Promise = require('any-promise')
 const lexical = Liquid.lexical
 const groupRE = new RegExp(`^(?:(${lexical.value.source})\\s*:\\s*)?(.*)$`)
 const candidatesRE = new RegExp(lexical.value.source, 'g')
diff --git a/tags/layout.js b/tags/layout.js
index b7c76d74f..6689359f5 100644
--- a/tags/layout.js
+++ b/tags/layout.js
@@ -1,5 +1,4 @@
 const Liquid = require('..')
-const Promise = require('any-promise')
 const lexical = Liquid.lexical
 const assert = require('../src/util/assert.js')
 const staticFileRE = /\S+/
diff --git a/tags/raw.js b/tags/raw.js
index a85170f79..aa9ae60a2 100644
--- a/tags/raw.js
+++ b/tags/raw.js
@@ -1,5 +1,3 @@
-const Promise = require('any-promise')
-
 module.exports = function (liquid) {
   liquid.registerTag('raw', {
     parse: function (tagToken, remainTokens) {