diff --git a/package.json b/package.json
index 5b0d8c9e..551971bf 100644
--- a/package.json
+++ b/package.json
@@ -13,7 +13,7 @@
     "cookie": "0.3.1",
     "cookie-signature": "1.0.6",
     "crc": "3.4.1",
-    "debug": "2.3.2",
+    "debug": "4.1.1",
     "depd": "~1.1.0",
     "on-headers": "~1.0.1",
     "parseurl": "~1.3.1",