diff --git a/appengine/cloudtasks/package.json b/appengine/cloudtasks/package.json
index 8eb6adfa4d..2beb8cee91 100644
--- a/appengine/cloudtasks/package.json
+++ b/appengine/cloudtasks/package.json
@@ -21,7 +21,7 @@
   },
   "dependencies": {
     "body-parser": "1.18.2",
-    "express": "4.16.2",
+    "express": "4.20.0",
     "googleapis": "22.2.0",
     "yargs": "10.0.3"
   },