diff --git a/package.json b/package.json
index 8841aca..4c7783c 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "body-parser": "~1.18.2",
     "cookie-parser": "~1.4.3",
     "debug": "~2.6.9",
-    "express": "~4.15.5",
+    "express": "~4.16.4",
     "jquery": "^3.2.1",
     "level": "^2.1.1",
     "morgan": "~1.9.0",