diff --git a/vendor/package-lock.json b/vendor/package-lock.json
index 081bbf147b..9a20fcbddb 100644
--- a/vendor/package-lock.json
+++ b/vendor/package-lock.json
@@ -2572,9 +2572,9 @@
       "integrity": "sha1-vbmdJw1tf9p4zA+6zoVeJ/59pp8="
     },
     "moment-timezone": {
-      "version": "0.5.13",
-      "resolved": "https://registry.npmjs.org/moment-timezone/-/moment-timezone-0.5.13.tgz",
-      "integrity": "sha1-mc5cfYJyYusPH3AgRBd/YHRde5A=",
+      "version": "0.5.27",
+      "resolved": "https://registry.npmjs.org/moment-timezone/-/moment-timezone-0.5.27.tgz",
+      "integrity": "sha512-EIKQs7h5sAsjhPCqN6ggx6cEbs94GK050254TIJySD1bzoM5JTYDwAU1IoVOeTOL6Gm27kYJ51/uuvq1kIlrbw==",
       "requires": {
         "moment": ">= 2.9.0"
       }
diff --git a/vendor/package.json b/vendor/package.json
index dc0e02db7c..7aaf4e4b4f 100644
--- a/vendor/package.json
+++ b/vendor/package.json
@@ -12,7 +12,7 @@
   "dependencies": {
     "@fortawesome/fontawesome-free": "^5.3.1",
     "moment": "^2.19.3",
-    "moment-timezone": "^0.5.11",
+    "moment-timezone": "^0.5.27",
     "nunjucks": "^3.1.3",
     "suncalc": "^1.8.0",
     "weathericons": "^2.1.0",