diff --git a/graphql-lesson03/package.json b/graphql-lesson03/package.json
index e3ab651..6c29756 100644
--- a/graphql-lesson03/package.json
+++ b/graphql-lesson03/package.json
@@ -6,7 +6,7 @@
     "@types/node": "^6.0.47",
     "body-parser": "^1.15.2",
     "graphql": "^0.8.2",
-    "koa": "^1.2.4",
+    "koa": "^3.0.1",
     "koa-convert": "^1.2.0",
     "koa-graphql": "^0.6.0",
     "koa-mount": "^1.3.0",