diff --git a/atom.ejs b/atom.ejs
deleted file mode 100644
index 70b5ce1..0000000
--- a/atom.ejs
+++ /dev/null
@@ -1,34 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<feed xmlns="http://www.w3.org/2005/Atom">
-  <title><%-: config.title | cdata %></title>
-  <% if (config.subtitle){ %><subtitle><%-: config.subtitle | cdata %></subtitle><% } %>
-  <link href="<%- encodeURI(feed_url) %>" rel="self"/>
-  <link href="<%- encodeURI(url) %>"/>
-  <updated><%= posts.first().updated.toISOString() %></updated>
-  <id><%- url %></id>
-  <% if (config.author){ %>
-  <author>
-    <name><%-: config.author | cdata %></name>
-    <% if (config.email){ %><email><%-: config.email | cdata %></email><% } %>
-  </author>
-  <% } %>
-  <generator uri="http://hexo.io/">Hexo</generator>
-  <% posts.each(function(post){ %>
-  <entry>
-    <title><%-: post.title | cdata %></title>
-    <link href="<%- encodeURI(url + post.path) %>"/>
-    <id><%- url + post.path %></id>
-    <published><%= post.date.toISOString() %></published>
-    <updated><%= post.updated.toISOString() %></updated>
-    <content type="html"><%-: post.content | cdata %></content>
-    <summary type="html">
-    <% if (post.description){ %><%-: post.description | cdata %>
-    <% } else if (post.excerpt){ %><%-: post.excerpt | cdata %>
-    <% } else {%><%-: post.content.substring(0, 140) | cdata %><% } %>
-    </summary>
-    <% [].concat(post.tags.toArray(), post.categories.toArray()).forEach(function(category){ %>
-      <category term="<%= category.name %>" scheme="<%- encodeURI(url + category.path) %>"/>
-    <% }) %>
-  </entry>
-  <% }) %>
-</feed>
diff --git a/atom.xml b/atom.xml
new file mode 100644
index 0000000..73c19ec
--- /dev/null
+++ b/atom.xml
@@ -0,0 +1,41 @@
+<?xml version="1.0" encoding="utf-8"?>
+<feed xmlns="http://www.w3.org/2005/Atom">
+  <title>{{ config.title | e }}</title>
+  {% if config.subtitle %}<subtitle>{{ config.subtitle | e }}</subtitle>{% endif %}
+  <link href="{{ feed_url | uriencode }}" rel="self"/>
+  <link href="{{ url | uriencode }}"/>
+  <updated>{{ posts.first().updated.toISOString() }}</updated>
+  <id>{{ url }}</id>
+  {% if config.author %}
+  <author>
+    <name>{{ config.author | e }}</name>
+    {% if config.email %}<email>{{ config.email | e }}</email>{% endif %}
+  </author>
+  {% endif %}
+  <generator uri="http://hexo.io/">Hexo</generator>
+  {% for post in posts.toArray() %}
+  <entry>
+    <title>{{ post.title | e }}</title>
+    <link href="{{ (url + post.path) | uriencode }}"/>
+    <id>{{ url + post.path }}</id>
+    <published>{{ post.date.toISOString() }}</published>
+    <updated>{{ post.updated.toISOString() }}</updated>
+    <content type="html">{{ post.content | e }}</content>
+    <summary type="html">
+    {% if post.description %}
+      {{ post.description | e }}
+    {% elif post.excerpt %}
+      {{ post.excerpt | e }}
+    {% elif post.content %}
+      {{ post.content.substring(0, 140) | e }}
+    {% endif %}
+    </summary>
+    {% for category in post.categories.toArray() %}
+      <category term="{{ category.name }}" scheme="{{ (url + category.path) | uriencode }}"/>
+    {% endfor %}
+    {% for tag in post.tags.toArray() %}
+      <category term="{{ tag.name }}" scheme="{{ (url + tag.path) | uriencode }}"/>
+    {% endfor %}
+  </entry>
+  {% endfor %}
+</feed>
diff --git a/index.js b/index.js
index 13a8101..4293a5e 100644
--- a/index.js
+++ b/index.js
@@ -9,20 +9,20 @@ var config = hexo.config.feed = assign({
 var type = config.type.toLowerCase();
 
 // Check feed type
-if (type !== 'atom' && type !== 'rss2'){
+if (type !== 'atom' && type !== 'rss2') {
   config.type = 'atom';
 } else {
   config.type = type;
 }
 
 // Set default feed path
-if (!config.path){
+if (!config.path) {
   config.path = config.type + '.xml';
 }
 
 // Add extension name if don't have
-if (!pathFn.extname(config.path)){
+if (!pathFn.extname(config.path)) {
   config.path += '.xml';
 }
 
-hexo.extend.generator.register('feed', require('./lib/generator'));
\ No newline at end of file
+hexo.extend.generator.register('feed', require('./lib/generator'));
diff --git a/lib/generator.js b/lib/generator.js
index f901b3c..b04bac3 100644
--- a/lib/generator.js
+++ b/lib/generator.js
@@ -1,17 +1,23 @@
-var ejs = require('ejs');
+var nunjucks = require('nunjucks');
+var env = new nunjucks.Environment();
 var pathFn = require('path');
 var fs = require('fs');
 
-ejs.filters.cdata = function(str){
-  return str ? '<![CDATA[' + str + ']]>' : '';
-};
+nunjucks.configure({
+  autoescape: false,
+  watch: false
+});
+
+env.addFilter('uriencode', function(str) {
+  return encodeURI(str);
+});
 
-var atomTmplSrc = pathFn.join(__dirname, '../atom.ejs');
-var atomTmpl = ejs.compile(fs.readFileSync(atomTmplSrc, 'utf8'));
-var rss2TmplSrc = pathFn.join(__dirname, '../rss2.ejs');
-var rss2Tmpl = ejs.compile(fs.readFileSync(rss2TmplSrc, 'utf8'));
+var atomTmplSrc = pathFn.join(__dirname, '../atom.xml');
+var atomTmpl = nunjucks.compile(fs.readFileSync(atomTmplSrc, 'utf8'), env);
+var rss2TmplSrc = pathFn.join(__dirname, '../rss2.xml');
+var rss2Tmpl = nunjucks.compile(fs.readFileSync(rss2TmplSrc, 'utf8'), env);
 
-module.exports = function(locals){
+module.exports = function(locals) {
   var config = this.config;
   var feedConfig = config.feed;
   var template = feedConfig.type === 'rss2' ? rss2Tmpl : atomTmpl;
@@ -22,18 +28,16 @@ module.exports = function(locals){
   var url;
 
   // Sorry for that, it is hexo URL handling way.
-  if (config.root === '/'){
+  if (config.root === '/') {
     url = config.url + config.root;
-  }
-  else
-  {
+  } else {
     url = config.url + '/';
   }
 
   // And sorry for that too.
   url = url.replace(/([^:])\/\//g, '$1/');
 
-  var xml = template({
+  var xml = template.render({
     config: config,
     url: url,
     posts: posts,
@@ -44,4 +48,4 @@ module.exports = function(locals){
     path: feedConfig.path,
     data: xml
   };
-};
\ No newline at end of file
+};
diff --git a/package.json b/package.json
index ee661dc..86118a1 100644
--- a/package.json
+++ b/package.json
@@ -23,20 +23,20 @@
   "author": "Tommy Chen <tommy351@gmail.com> (http://zespia.tw)",
   "license": "MIT",
   "dependencies": {
-    "ejs": "^1.0.0",
-    "object-assign": "^3.0.0"
+    "nunjucks": "^1.3.4",
+    "object-assign": "^4.0.1"
   },
   "devDependencies": {
-    "chai": "^1.9.1",
+    "chai": "^3.2.0",
     "cheerio": "^0.19.0",
     "coveralls": "^2.11.2",
     "gulp": "^3.8.9",
-    "gulp-istanbul": "^0.5.0",
+    "gulp-istanbul": "^0.10.0",
     "gulp-jshint": "^1.8.6",
-    "gulp-load-plugins": "^0.8.0",
+    "gulp-load-plugins": "^0.10.0",
     "gulp-mocha": "^2.0.0",
     "hexo": "^3.0.0",
-    "jshint-stylish": "^1.0.0",
+    "jshint-stylish": "^2.0.1",
     "mocha": "^2.0.1",
     "rimraf": "^2.2.8"
   }
diff --git a/rss2.ejs b/rss2.ejs
deleted file mode 100644
index 4c014f0..0000000
--- a/rss2.ejs
+++ /dev/null
@@ -1,28 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<rss version="2.0"
-  xmlns:atom="http://www.w3.org/2005/Atom"
-  xmlns:content="http://purl.org/rss/1.0/modules/content/">
-  <channel>
-    <title><%-: config.title | cdata %></title>
-    <link><%- encodeURI(url) %></link>
-    <atom:link href="<%- encodeURI(feed_url) %>" rel="self" type="application/rss+xml"/>
-    <description><%-: config.description | cdata %></description>
-    <pubDate><%= posts.first().updated.toDate().toUTCString() %></pubDate>
-    <generator>http://hexo.io/</generator>
-    <% posts.each(function(post){ %>
-    <item>
-      <title><%-: post.title | cdata %></title>
-      <link><%- encodeURI(url + post.path) %></link>
-      <guid><%- encodeURI(url + post.path) %></guid>
-      <pubDate><%= post.date.toDate().toUTCString() %></pubDate>
-      <description>
-      <% if (post.description){ %><%-: post.description | cdata %>
-      <% } else if (post.excerpt){ %><%-: post.excerpt | cdata %>
-      <% } else {%><%-: post.content.substring(0, 140) | cdata %><% } %>
-      </description>
-      <content:encoded><%-: post.content | cdata %></content:encoded>
-      <% if (post.comments){ %><comments><%- encodeURI(url + post.path) %>#disqus_thread</comments><% } %>
-    </item>
-    <% }) %>
-  </channel>
-</rss>
diff --git a/rss2.xml b/rss2.xml
new file mode 100644
index 0000000..9698c5f
--- /dev/null
+++ b/rss2.xml
@@ -0,0 +1,32 @@
+<?xml version="1.0" encoding="utf-8"?>
+<rss version="2.0"
+  xmlns:atom="http://www.w3.org/2005/Atom"
+  xmlns:content="http://purl.org/rss/1.0/modules/content/">
+  <channel>
+    <title>{{ config.title | e }}</title>
+    <link>{{ url | uriencode }}</link>
+    <atom:link href="{{ feed_url | uriencode }}" rel="self" type="application/rss+xml"/>
+    <description>{{ config.description | e }}</description>
+    <pubDate>{{ posts.first().updated.toDate().toUTCString() }}</pubDate>
+    <generator>http://hexo.io/</generator>
+    {% for post in posts.toArray() %}
+    <item>
+      <title>{{ post.title | e }}</title>
+      <link>{{ (url + post.path) | uriencode }}</link>
+      <guid>{{ (url + post.path) | uriencode }}</guid>
+      <pubDate>{{ post.date.toDate().toUTCString() }}</pubDate>
+      <description>
+      {% if post.description %}
+        {{ post.description | e }}
+      {% elif post.excerpt %}
+        {{ post.excerpt | e }}
+      {% elif post.content %}
+        {{ post.content.substring(0, 140) | e }}
+      {% endif %}
+      </description>
+      <content:encoded>{{ post.content | e }}</content:encoded>
+      {% if post.comments %}<comments>{{ (url + post.path) | uriencode }}#disqus_thread</comments>{% endif %}
+    </item>
+    {% endfor %}
+  </channel>
+</rss>
diff --git a/test/index.js b/test/index.js
index 12feb70..b499bed 100644
--- a/test/index.js
+++ b/test/index.js
@@ -1,44 +1,60 @@
 var should = require('chai').should();
 var Hexo = require('hexo');
-var ejs = require('ejs');
+var nunjucks = require('nunjucks');
+var env = new nunjucks.Environment();
 var pathFn = require('path');
 var fs = require('fs');
 var assign = require('object-assign');
 var cheerio = require('cheerio');
 
-ejs.filters.cdata = function(str){
-  return str ? '<![CDATA[' + str + ']]>' : '';
-};
+nunjucks.configure({
+  autoescape: false,
+  watch: false
+});
+
+env.addFilter('uriencode', function(str) {
+  return encodeURI(str);
+});
 
-var atomTmplSrc = pathFn.join(__dirname, '../atom.ejs');
-var atomTmpl = ejs.compile(fs.readFileSync(atomTmplSrc, 'utf8'));
-var rss2TmplSrc = pathFn.join(__dirname, '../rss2.ejs');
-var rss2Tmpl = ejs.compile(fs.readFileSync(rss2TmplSrc, 'utf8'));
+var atomTmplSrc = pathFn.join(__dirname, '../atom.xml');
+var atomTmpl = nunjucks.compile(fs.readFileSync(atomTmplSrc, 'utf8'), env);
+var rss2TmplSrc = pathFn.join(__dirname, '../rss2.xml');
+var rss2Tmpl = nunjucks.compile(fs.readFileSync(rss2TmplSrc, 'utf8'), env);
 
 var urlConfig = {
-  url:  'http://localhost/',
+  url: 'http://localhost/',
   root: '/'
 };
 
-describe('Feed generator', function(){
-  var hexo = new Hexo(__dirname, {silent: true});
+describe('Feed generator', function() {
+  var hexo = new Hexo(__dirname, {
+    silent: true
+  });
   var Post = hexo.model('Post');
   var generator = require('../lib/generator').bind(hexo);
   var posts;
   var locals;
 
-  before(function(){
-    return Post.insert([
-      {source: 'foo', slug: 'foo', date: 1e8},
-      {source: 'bar', slug: 'bar', date: 1e8 + 1},
-      {source: 'baz', slug: 'baz', date: 1e8 - 1}
-    ]).then(function(data){
+  before(function() {
+    return Post.insert([{
+      source: 'foo',
+      slug: 'foo',
+      date: 1e8
+    }, {
+      source: 'bar',
+      slug: 'bar',
+      date: 1e8 + 1
+    }, {
+      source: 'baz',
+      slug: 'baz',
+      date: 1e8 - 1
+    }]).then(function(data) {
       posts = Post.sort('-date');
       locals = hexo.locals.toObject();
     });
   });
 
-  it('type = atom', function(){
+  it('type = atom', function() {
     hexo.config.feed = {
       type: 'atom',
       path: 'atom.xml',
@@ -48,7 +64,7 @@ describe('Feed generator', function(){
     var result = generator(locals);
 
     result.path.should.eql('atom.xml');
-    result.data.should.eql(atomTmpl({
+    result.data.should.eql(atomTmpl.render({
       config: hexo.config,
       url: urlConfig.url,
       posts: posts.limit(2),
@@ -56,7 +72,7 @@ describe('Feed generator', function(){
     }));
   });
 
-  it('type = rss2', function(){
+  it('type = rss2', function() {
     hexo.config.feed = {
       type: 'rss2',
       path: 'rss2.xml',
@@ -66,7 +82,7 @@ describe('Feed generator', function(){
     var result = generator(locals);
 
     result.path.should.eql('rss2.xml');
-    result.data.should.eql(rss2Tmpl({
+    result.data.should.eql(rss2Tmpl.render({
       config: hexo.config,
       url: urlConfig.url,
       posts: posts.limit(2),
@@ -74,7 +90,7 @@ describe('Feed generator', function(){
     }));
   });
 
-  it('limit = 0', function(){
+  it('limit = 0', function() {
     hexo.config.feed = {
       type: 'atom',
       path: 'atom.xml',
@@ -85,7 +101,7 @@ describe('Feed generator', function(){
     var result = generator(locals);
 
     result.path.should.eql('atom.xml');
-    result.data.should.eql(atomTmpl({
+    result.data.should.eql(atomTmpl.render({
       config: hexo.config,
       url: urlConfig.url,
       posts: posts,
@@ -93,13 +109,13 @@ describe('Feed generator', function(){
     }));
   });
 
-  it('Relative URL handling', function(){
+  it('Relative URL handling', function() {
     hexo.config.feed = {
       type: 'atom',
       path: 'atom.xml'
     };
 
-    var checkURL = function(root, path, valid){
+    var checkURL = function(root, path, valid) {
       hexo.config.url = root;
       hexo.config.path = path;
 
@@ -114,12 +130,12 @@ describe('Feed generator', function(){
 
     var GOOD = 'http://localhost/blog/';
 
-    checkURL('http://localhost/blog',   '/blog/', GOOD);
-    checkURL('http://localhost/blog',   '/blog',  GOOD);
-    checkURL('http://localhost/blog/',  '/blog/', GOOD);
-    checkURL('http://localhost/blog/',  '/blog',  GOOD);
+    checkURL('http://localhost/blog', '/blog/', GOOD);
+    checkURL('http://localhost/blog', '/blog', GOOD);
+    checkURL('http://localhost/blog/', '/blog/', GOOD);
+    checkURL('http://localhost/blog/', '/blog', GOOD);
 
     checkURL('http://localhost/b/l/o/g', '/', 'http://localhost/b/l/o/g/');
 
   });
-});
\ No newline at end of file
+});