diff --git a/package.json b/package.json
index 6cb7b35..aa3cc39 100644
--- a/package.json
+++ b/package.json
@@ -31,7 +31,7 @@
     "commander": "~2.9.0",
     "is-generator-fn": "^1.0.0",
     "is-plain-object": "~2.0.1",
-    "koa": "~1.2.0",
+    "koa": "^1.6.2",
     "koa-serve-index": "~1.1.1",
     "koa-static": "^2.0.0",
     "loader-utils": "^0.2.14",