diff --git a/.npmignore b/.npmignore
deleted file mode 100644
index e291b59..0000000
--- a/.npmignore
+++ /dev/null
@@ -1,5 +0,0 @@
-benchmark/
-test/
-cov/
-Makefile
-covrage.html
diff --git a/.travis.yml b/.travis.yml
index 9adc565..d76269d 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -2,5 +2,7 @@ language: node_js
 node_js:
   - "0.10"
   - "0.11"
+  - "0.12"
+  - "iojs-1"
 script: "make test-travis"
 after_script: "npm install coveralls@2.10.0 && cat ./coverage/lcov.info | coveralls"
diff --git a/Makefile b/Makefile
index afc23e3..3ca58dd 100644
--- a/Makefile
+++ b/Makefile
@@ -1,10 +1,10 @@
 TESTS = test/*.test.js
-REPORTER = tap
+REPORTER = spec
 TIMEOUT = 3000
 MOCHA_OPTS =
 
 install:
-	@npm install --registry=http://registry.npm.taobao.org
+	@npm install
 
 test:
 	@NODE_ENV=test ./node_modules/mocha/bin/mocha \
diff --git a/README.md b/README.md
index d1bd40d..20a2ca3 100644
--- a/README.md
+++ b/README.md
@@ -28,7 +28,7 @@ $ npm install humanize-ms
 
 ## Examples
 
-```
+```js
 var ms = require('humanize-ms');
 
 ms('1s') // 1000
diff --git a/index.js b/index.js
index 097d3f4..c2423f1 100644
--- a/index.js
+++ b/index.js
@@ -15,6 +15,6 @@ var ms = require('ms');
 module.exports = function (t) {
   if (typeof t === 'number') return t;
   var r = ms(t);
-  if (r === undefined) console.warn('ms(%s) got undefined in %s', t, __filename);
+  if (r === undefined) console.warn('ms(%j) got undefined in %s', t, __filename);
   return r;
 };
diff --git a/package.json b/package.json
index 3724a29..8da5773 100644
--- a/package.json
+++ b/package.json
@@ -3,6 +3,7 @@
   "version": "1.0.1",
   "description": "transform humanize time to ms",
   "main": "index.js",
+  "files": ["index.js"],
   "scripts": {
     "test": "make test"
   },
@@ -21,12 +22,12 @@
   },
   "license": "MIT",
   "dependencies": {
-    "ms": "~0.6.2"
+    "ms": "~0.7.0"
   },
   "devDependencies": {
-    "autod": "~0.3.2",
-    "istanbul": "~0.3.0",
-    "mocha": "~1.21.4",
-    "should": "~4.0.4"
+    "autod": "*",
+    "istanbul": "*",
+    "mocha": "*",
+    "should": "*"
   }
 }
diff --git a/test/index.test.js b/test/index.test.js
index 4e97966..d050f40 100644
--- a/test/index.test.js
+++ b/test/index.test.js
@@ -22,6 +22,8 @@ describe('humanize-ms', function () {
   describe('when string', function () {
     it('should transform to number', function () {
       ms('1s').should.equal(1000);
+      ms('1m').should.equal(60000);
+      ms('1').should.equal(1);
     });
   });