diff --git a/service/package.json b/service/package.json
index 22e9b6f3a2..50571dda96 100644
--- a/service/package.json
+++ b/service/package.json
@@ -23,7 +23,7 @@
     "ejs": "1.0.0",
     "ejs-locals": "1.0.2",
     "errorhandler": "1.2.0",
-    "express": "4.12.4",
+    "express": "4.21.1",
     "express-fileupload": "0.0.5",
     "express-session": "^1.17.2",
     "file-type": "^8.1.0",