diff --git a/backend/functions/package-lock.json b/backend/functions/package-lock.json
index 3f4827a..6b7c71d 100644
--- a/backend/functions/package-lock.json
+++ b/backend/functions/package-lock.json
@@ -2146,9 +2146,9 @@
       "integrity": "sha512-oIixUO+OamkUkwjhAVE18rAMfRJNsNe/Stid/gwHSOfHrOtw9EhAY2AHvdKZ/k/MggcYELFCJz/Sn2pL8b8JMw=="
     },
     "moment-timezone": {
-      "version": "0.5.31",
-      "resolved": "https://registry.npmjs.org/moment-timezone/-/moment-timezone-0.5.31.tgz",
-      "integrity": "sha512-+GgHNg8xRhMXfEbv81iDtrVeTcWt0kWmTEY1XQK14dICTXnWJnT0dxdlPspwqF3keKMVPXwayEsk1DI0AA/jdA==",
+      "version": "0.5.35",
+      "resolved": "https://registry.npmjs.org/moment-timezone/-/moment-timezone-0.5.35.tgz",
+      "integrity": "sha512-cY/pBOEXepQvlgli06ttCTKcIf8cD1nmNwOKQQAdHBqYApQSpAqotBMX0RJZNgMp6i0PlZuf1mFtnlyEkwyvFw==",
       "requires": {
         "moment": ">= 2.9.0"
       }
diff --git a/backend/functions/package.json b/backend/functions/package.json
index 545ada9..e606444 100644
--- a/backend/functions/package.json
+++ b/backend/functions/package.json
@@ -17,7 +17,7 @@
     "firebase-admin": "^8.9.0",
     "firebase-functions": "^3.3.0",
     "moment": "^2.26.0",
-    "moment-timezone": "^0.5.31"
+    "moment-timezone": "^0.5.35"
   },
   "devDependencies": {
     "eslint": "^5.12.0",