diff --git a/package.json b/package.json
index 6b999f7..9b289c9 100644
--- a/package.json
+++ b/package.json
@@ -18,7 +18,7 @@
     "co": "^4.6.0",
     "co-body": "^4.2.0",
     "config": "^1.20.4",
-    "koa": "^1.2.0",
+    "koa": "^2.0.1",
     "koa-router": "^5.4.0",
     "koa-static": "^2.0.0",
     "mongodb": "^2.1.20",