diff --git a/package.json b/package.json
index c3dce87..c199a0c 100644
--- a/package.json
+++ b/package.json
@@ -20,7 +20,7 @@
     "co": "^4.0.1",
     "co-body": "5.1.1",
     "co-request": "0.2.1",
-    "debug": "2.2.0",
+    "debug": "4.1.1",
     "fs-extra": "^8.1.0",
     "koa": "2.3.0",
     "koa-compose": "2.3.0",