diff --git a/appengine/analytics/package.json b/appengine/analytics/package.json
index 5f4e96dd39..0eb9806df6 100644
--- a/appengine/analytics/package.json
+++ b/appengine/analytics/package.json
@@ -22,7 +22,7 @@
     "e2e-test": "repo-tools test deploy"
   },
   "dependencies": {
-    "express": "4.16.0",
+    "express": "4.21.0",
     "got": "7.1.0"
   },
   "devDependencies": {