diff --git a/examples/blog/index.js b/examples/blog/index.js
index c6d2eb0..3ed8886 100644
--- a/examples/blog/index.js
+++ b/examples/blog/index.js
@@ -7,6 +7,7 @@ var render = require('./lib/render');
 var logger = require('koa-logger');
 var route = require('koa-route');
 var views = require('co-views');
+var parse = require('co-body');
 var koa = require('../..');
 var app = koa();
 
@@ -65,28 +66,6 @@ function *create() {
   this.redirect('/');
 }
 
-// TODO: use a lib...
-
-var qs = require('querystring');
-
-function parse(ctx) {
-  return function(done){
-    var buf = '';
-    var req = ctx.req;
-    req.setEncoding('utf8');
-    req.on('data', function(chunk){ buf += chunk });
-    req.on('end', function(){
-      try {
-        done(null, qs.parse(buf));
-      } catch (err){
-        err.body = buf;
-        err.status = 400;
-        done(err);
-      }
-    });
-  }
-}
-
 // listen
 
 app.listen(3000);
diff --git a/package.json b/package.json
index 7331c68..9fcee63 100644
--- a/package.json
+++ b/package.json
@@ -42,7 +42,8 @@
     "koa-static": "~1.2.0",
     "co-busboy": "git://github.com/cojs/busboy",
     "koa-route": "~1.0.2",
-    "swig": "~1.1.0"
+    "swig": "~1.1.0",
+    "co-body": "0.0.1"
   },
   "engines": {
     "node": "> 0.11.4"