diff --git a/package.json b/package.json
index 5eacd01..479c415 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "core-worker": "^0.3.0",
     "imagemagick": "^0.1.3",
     "imgur": "^0.3.0",
-    "koa": "^2.0.0",
+    "koa": "^3.0.0",
     "koa-router": "^5.3.0",
     "uuid": "^3.0.0"
   },