diff --git a/lib/fields.js b/lib/fields.js
index 4ae582e..bcec9c6 100644
--- a/lib/fields.js
+++ b/lib/fields.js
@@ -2,7 +2,6 @@
 
 var is = require('is');
 var some = require('array.prototype.some');
-var async = require('async');
 var assign = require('object.assign');
 
 var asyncForEach = require('./async');