diff --git a/Lecture17/user-auth/package-lock.json b/Lecture17/user-auth/package-lock.json
index 4a22acf..7f0ba9a 100644
--- a/Lecture17/user-auth/package-lock.json
+++ b/Lecture17/user-auth/package-lock.json
@@ -531,9 +531,9 @@
       "integrity": "sha512-PuYv0PHxZvzc15Sp8ybUCoQ+xpyPWvjOuK72a5ovzp2LI32rJXOiIfyoFoYvG3s6EwwrdkMyWuRiEHSZRLJNdg=="
     },
     "moment-timezone": {
-      "version": "0.5.31",
-      "resolved": "https://registry.npmjs.org/moment-timezone/-/moment-timezone-0.5.31.tgz",
-      "integrity": "sha512-+GgHNg8xRhMXfEbv81iDtrVeTcWt0kWmTEY1XQK14dICTXnWJnT0dxdlPspwqF3keKMVPXwayEsk1DI0AA/jdA==",
+      "version": "0.5.37",
+      "resolved": "https://registry.npmjs.org/moment-timezone/-/moment-timezone-0.5.37.tgz",
+      "integrity": "sha512-uEDzDNFhfaywRl+vwXxffjjq1q0Vzr+fcQpQ1bU0kbzorfS7zVtZnCnGc8mhWmF39d4g4YriF6kwA75mJKE/Zg==",
       "requires": {
         "moment": ">= 2.9.0"
       }