diff --git a/package.json b/package.json
index c03a2ca..9bd3b50 100644
--- a/package.json
+++ b/package.json
@@ -27,7 +27,7 @@
     "istanbul-harmony": "*",
     "jshint": "*",
     "koa": "1",
-    "koa-router": "4",
+    "koa-router": "5.3.0",
     "mocha": "*",
     "pedding": "1",
     "should": "7",