diff --git a/package.json b/package.json
index 01498de..77bdbe8 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "msgpack5",
-  "version": "2.1.0",
+  "version": "2.2.0",
   "description": "A msgpack v5 implementation for node.js and the browser, with extension points",
   "main": "index.js",
   "scripts": {
diff --git a/test/64-bits-unsigned-integers.js b/test/64-bits-unsigned-integers.js
index 7f8b87d..4fef71f 100644
--- a/test/64-bits-unsigned-integers.js
+++ b/test/64-bits-unsigned-integers.js
@@ -6,13 +6,11 @@ var test    = require('tape').test
 test('encoding/decoding 64-bits big-endian unsigned integers', function(t) {
   var encoder = msgpack()
     , allNum  = []
-    , base    = 0xffffffff
 
   allNum.push(0xffffffff)
 
   allNum.push(0xffffffffeeeee)
 
-
   allNum.forEach(function(num) {
     t.test('encoding ' + num, function(t) {
       var buf = encoder.encode(num)