diff --git a/appengine/cloudsql/package.json b/appengine/cloudsql/package.json
index 4ec82752e3..0b2e27bade 100644
--- a/appengine/cloudsql/package.json
+++ b/appengine/cloudsql/package.json
@@ -26,7 +26,7 @@
   },
   "dependencies": {
     "async": "2.5.0",
-    "express": "4.15.4",
+    "express": "4.17.3",
     "knex": "0.13.0",
     "mysql": "2.14.1",
     "prompt": "1.0.0"