diff --git a/package.json b/package.json
index b82c9de..af3f8c7 100644
--- a/package.json
+++ b/package.json
@@ -43,7 +43,7 @@
     "codelyzer": "4.0.1",
     "cookie-parser": "~1.4.3",
     "core-js": "2.4.1",
-    "debug": "~2.2.0",
+    "debug": "~4.1.1",
     "ejs": "^2.5.2",
     "enhanced-resolve": "^3.3.0",
     "express": "~4.13.4",