diff --git a/functions/package-lock.json b/functions/package-lock.json
index 4d4d466..4d562c5 100644
--- a/functions/package-lock.json
+++ b/functions/package-lock.json
@@ -2301,9 +2301,9 @@
       "integrity": "sha512-al0MUK7cpIcglMv3YF13qSgdAIqxHTO7brRtaz3DlSULbqfazqkc5kEjNrLDOM7fsjshoFIihnU8snrP7zUvhQ=="
     },
     "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/functions/package.json b/functions/package.json
index 284edae..1dc59f8 100644
--- a/functions/package.json
+++ b/functions/package.json
@@ -18,7 +18,7 @@
     "firebase-admin": "^8.10.0",
     "firebase-functions": "^3.6.1",
     "moment": "^2.27.0",
-    "moment-timezone": "^0.5.31"
+    "moment-timezone": "^0.5.35"
   },
   "devDependencies": {
     "eslint": "^5.12.0",