diff --git a/appengine/datastore/package.json b/appengine/datastore/package.json
index dc0718997f..2264a451ea 100644
--- a/appengine/datastore/package.json
+++ b/appengine/datastore/package.json
@@ -23,7 +23,7 @@
   },
   "dependencies": {
     "@google-cloud/datastore": "1.1.0",
-    "express": "4.15.4"
+    "express": "4.17.3"
   },
   "devDependencies": {
     "@google-cloud/nodejs-repo-tools": "1.4.17"