diff --git a/package-lock.json b/package-lock.json
index 48d995a..f65f098 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1736,9 +1736,9 @@
             }
         },
         "mathjs": {
-            "version": "6.6.0",
-            "resolved": "https://registry.npmjs.org/mathjs/-/mathjs-6.6.0.tgz",
-            "integrity": "sha512-gYYc1+irFbwuwYUx6O8G2YauvbD1+tPBbq829PaxAiRWpPzPEE8pvwGgvdMuk6c3pqhm6Do/mN26vLiQP46H5A==",
+            "version": "6.6.1",
+            "resolved": "https://registry.npmjs.org/mathjs/-/mathjs-6.6.1.tgz",
+            "integrity": "sha512-RCFCYkf1IV3u0DAeqj2Rqqwyi302kFxHoYbfp/Bxm6kUg0ALYH7YT0bYzsO8qgCLv9RS3bWMZnAgUbLgiDjLcw==",
             "dev": true,
             "requires": {
                 "complex.js": "^2.0.11",
@@ -1888,9 +1888,9 @@
             "integrity": "sha1-PCV/mDn8DpP/UxSWMiOeuQeD/2Y="
         },
         "moment-timezone": {
-            "version": "0.5.23",
-            "resolved": "https://registry.npmjs.org/moment-timezone/-/moment-timezone-0.5.23.tgz",
-            "integrity": "sha512-WHFH85DkCfiNMDX5D3X7hpNH3/PUhjTGcD0U1SgfBGZxJ3qUmJh5FdvaFjcClxOvB3rzdfj4oRffbI38jEnC1w==",
+            "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/package.json b/package.json
index 3a3f437..b2f7a77 100644
--- a/package.json
+++ b/package.json
@@ -19,7 +19,7 @@
         "jexl": "^2.1.1",
         "js-yaml": "^3.13.1",
         "lodash": "^4.17.15",
-        "moment-timezone": "^0.5.23",
+        "moment-timezone": "^0.5.27",
         "mqtt": "^2.18.8",
         "mqtt-wildcard": "^3.0.9",
         "node-schedule-tz": "^1.2.1-4",