diff --git a/nodejs/nodejs-guestbook/package-lock.json b/nodejs/nodejs-guestbook/package-lock.json
index 188a34907..a095ec3c2 100644
--- a/nodejs/nodejs-guestbook/package-lock.json
+++ b/nodejs/nodejs-guestbook/package-lock.json
@@ -511,9 +511,10 @@
       }
     },
     "node_modules/flatted": {
-      "version": "3.2.9",
-      "resolved": "https://registry.npmjs.org/flatted/-/flatted-3.2.9.tgz",
-      "integrity": "sha512-36yxDn5H7OFZQla0/jFJmbIKTdZAQHngCedGxiMmpNfEZM0sdEeT+WczLQrjK6D7o2aiyLYDnkw0R3JK0Qv1RQ=="
+      "version": "3.4.2",
+      "resolved": "https://registry.npmjs.org/flatted/-/flatted-3.4.2.tgz",
+      "integrity": "sha512-PjDse7RzhcPkIJwy5t7KPWQSZ9cAbzQXcafsetQoD7sOJRQlGikNbx7yZp2OotDnJyrDcbyRq3Ttb18iYOqkxA==",
+      "license": "ISC"
     },
     "node_modules/fs.realpath": {
       "version": "1.0.0",