diff --git a/package-lock.json b/package-lock.json
index d0db058b..bd19bd48 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -829,6 +829,30 @@
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+      "resolved": "https://registry.npmjs.org/bufferutil/-/bufferutil-1.3.0.tgz",
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+          "resolved": "https://registry.npmjs.org/bindings/-/bindings-1.2.1.tgz",
+          "integrity": "sha1-FK1hE4EtLTfXLme0ystLtyZQXxE=",
+          "optional": true
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+        "nan": {
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+          "resolved": "https://registry.npmjs.org/nan/-/nan-2.4.0.tgz",
+          "integrity": "sha1-+zxZ1F/k7/4hXwuJD4rfbrMtIjI=",
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       "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.0.tgz",
@@ -3344,30 +3368,32 @@
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-      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.5.3.tgz",
-      "integrity": "sha512-3yPecJoJHK/4c6aZhSvxOyG4vJKDshV36VHp0iVCDVh7o9w2vwi3NSnL2MMPj3YdduqaBcu7cGbggJQM0br9xA==",
+      "version": "4.7.7",
+      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.7.7.tgz",
+      "integrity": "sha512-aAcXm5OAfE/8IXkcZvCepKU3VzW1/39Fb5ZuqMtgI/hT8X2YgoMvBY5dLhq/cpOvw7Lk1nK/UF71aLG/ZnVYRA==",
       "requires": {
+        "minimist": "^1.2.5",
         "neo-async": "^2.6.0",
-        "optimist": "^0.6.1",
         "source-map": "^0.6.1",
-        "uglify-js": "^3.1.4"
+        "uglify-js": "^3.1.4",
+        "wordwrap": "^1.0.0"
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-          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
-          "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g=="
+        "minimist": {
+          "version": "1.2.5",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
+          "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw=="
         },
         "uglify-js": {
-          "version": "3.7.2",
-          "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.7.2.tgz",
-          "integrity": "sha512-uhRwZcANNWVLrxLfNFEdltoPNhECUR3lc+UdJoG9CBpMcSnKyWA94tc3eAujB1GcMY5Uwq8ZMp4qWpxWYDQmaA==",
-          "optional": true,
-          "requires": {
-            "commander": "~2.20.3",
-            "source-map": "~0.6.1"
-          }
+          "version": "3.13.5",
+          "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.13.5.tgz",
+          "integrity": "sha512-xtB8yEqIkn7zmOyS2zUNBsYCBRhDkvlNxMMY2smuJ/qA8NCHeQvKCF3i9Z4k8FJH4+PJvZRtMrPynfZ75+CSZw==",
+          "optional": true
+        },
+        "wordwrap": {
+          "version": "1.0.0",
+          "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
+          "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus="
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@@ -4840,9 +4866,9 @@
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     "neo-async": {
-      "version": "2.6.1",
-      "resolved": "https://registry.npmjs.org/neo-async/-/neo-async-2.6.1.tgz",
-      "integrity": "sha512-iyam8fBuCUpWeKPGpaNMetEocMt364qkCsfL9JuhjXX6dRnguRVOfk2GZaDpPjcOKiiXCPINZC1GczQ7iTq3Zw=="
+      "version": "2.6.2",
+      "resolved": "https://registry.npmjs.org/neo-async/-/neo-async-2.6.2.tgz",
+      "integrity": "sha512-Yd3UES5mWCSqR+qNT93S3UoYUkqAZ9lLg8a7g9rimsWmYGK8cVToA4/sF3RrshdyV3sAGMXVUmpMYOw+dLpOuw=="
     },
     "netmask": {
       "version": "1.0.6",
@@ -5123,15 +5149,6 @@
         "wrappy": "1"
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-    "optimist": {
-      "version": "0.6.1",
-      "resolved": "https://registry.npmjs.org/optimist/-/optimist-0.6.1.tgz",
-      "integrity": "sha1-2j6nRob6IaGaERwybpDrFaAZZoY=",
-      "requires": {
-        "minimist": "~0.0.1",
-        "wordwrap": "~0.0.2"
-      }
-    },
     "optionator": {
       "version": "0.8.3",
       "resolved": "https://registry.npmjs.org/optionator/-/optionator-0.8.3.tgz",
@@ -10087,6 +10104,11 @@
         "socks": "~2.3.2"
       }
     },
+    "source-map": {
+      "version": "0.6.1",
+      "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
+      "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g=="
+    },
     "source-map-resolve": {
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       "resolved": "https://registry.npmjs.org/source-map-resolve/-/source-map-resolve-0.5.2.tgz",
@@ -10686,6 +10708,30 @@
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       "integrity": "sha512-cwESVXlO3url9YWlFW/TA9cshCEhtu7IKJ/p5soJ/gGpj7vbvFrAY/eIioQ6Dw23KjZhYgiIo8HOs1nQ2vr/oQ=="
     },
+    "utf-8-validate": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/utf-8-validate/-/utf-8-validate-2.0.0.tgz",
+      "integrity": "sha1-OPVjbXjC5Mwg4TJHDMTQa5IZLkQ=",
+      "optional": true,
+      "requires": {
+        "bindings": "~1.2.1",
+        "nan": "~2.4.0"
+      },
+      "dependencies": {
+        "bindings": {
+          "version": "1.2.1",
+          "resolved": "https://registry.npmjs.org/bindings/-/bindings-1.2.1.tgz",
+          "integrity": "sha1-FK1hE4EtLTfXLme0ystLtyZQXxE=",
+          "optional": true
+        },
+        "nan": {
+          "version": "2.4.0",
+          "resolved": "https://registry.npmjs.org/nan/-/nan-2.4.0.tgz",
+          "integrity": "sha1-+zxZ1F/k7/4hXwuJD4rfbrMtIjI=",
+          "optional": true
+        }
+      }
+    },
     "util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
@@ -10928,7 +10974,8 @@
     "wordwrap": {
       "version": "0.0.2",
       "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.2.tgz",
-      "integrity": "sha1-t5Zpu0LstAn4PVg8rVLKF+qhZD8="
+      "integrity": "sha1-t5Zpu0LstAn4PVg8rVLKF+qhZD8=",
+      "optional": true
     },
     "wrappy": {
       "version": "1.0.2",
diff --git a/package.json b/package.json
index 0445d6bd..0db4a5c2 100644
--- a/package.json
+++ b/package.json
@@ -26,7 +26,7 @@
     "grunt-contrib-watch": "^1.1.0",
     "grunt-html2js": "^0.7.1",
     "grunt-sync": "^0.8.2",
-    "handlebars": "^4.5.3",
+    "handlebars": "^4.7.7",
     "holtwinters": "0.0.1",
     "include-all": "^4.0.3",
     "mailgun-js": "^0.20.0",