diff --git a/package.json b/package.json
index ddcefa0..2dfdf7f 100644
--- a/package.json
+++ b/package.json
@@ -28,7 +28,7 @@
     "medley"
   ],
   "dependencies": {
-    "cookie": "^0.3.1",
+    "cookie": "^0.4.0",
     "cookie-signature": "^1.1.0"
   },
   "devDependencies": {