diff --git a/package-lock.json b/package-lock.json
index fd34056..31a9f4d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4421,12 +4421,26 @@
       "integrity": "sha1-Dovf5NHduIVNZOBOp8AOKgJuVlg="
     },
     "handlebars": {
-      "version": "1.3.0",
-      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-1.3.0.tgz",
-      "integrity": "sha1-npsTCpPjiUkTItl1zz7BgYw3zjQ=",
+      "version": "4.1.2",
+      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.1.2.tgz",
+      "integrity": "sha512-nvfrjqvt9xQ8Z/w0ijewdD/vvWDTOweBUm96NTr66Wfvo1mJenBLwcYmPs3TIBP5ruzYGD7Hx/DaM9RmhroGPw==",
       "requires": {
-        "optimist": "~0.3",
-        "uglify-js": "~2.3"
+        "neo-async": "^2.6.0",
+        "optimist": "^0.6.1",
+        "source-map": "^0.6.1",
+        "uglify-js": "^3.1.4"
+      },
+      "dependencies": {
+        "neo-async": {
+          "version": "2.6.1",
+          "resolved": "https://registry.npmjs.org/neo-async/-/neo-async-2.6.1.tgz",
+          "integrity": "sha512-iyam8fBuCUpWeKPGpaNMetEocMt364qkCsfL9JuhjXX6dRnguRVOfk2GZaDpPjcOKiiXCPINZC1GczQ7iTq3Zw=="
+        },
+        "source-map": {
+          "version": "0.6.1",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
+          "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g=="
+        }
       }
     },
     "handlebars-loader": {
@@ -6756,10 +6770,11 @@
       }
     },
     "optimist": {
-      "version": "0.3.7",
-      "resolved": "https://registry.npmjs.org/optimist/-/optimist-0.3.7.tgz",
-      "integrity": "sha1-yQlBrVnkJzMokjB00s8ufLxuwNk=",
+      "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"
       },
       "dependencies": {
@@ -9437,30 +9452,26 @@
       "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c="
     },
     "uglify-js": {
-      "version": "2.3.6",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-2.3.6.tgz",
-      "integrity": "sha1-+gmEdwtCi3qbKoBY9GNV0U/vIRo=",
+      "version": "3.6.7",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.6.7.tgz",
+      "integrity": "sha512-4sXQDzmdnoXiO+xvmTzQsfIiwrjUCSA95rSP4SEd8tDb51W2TiDOlL76Hl+Kw0Ie42PSItCW8/t6pBNCF2R48A==",
       "optional": true,
       "requires": {
-        "async": "~0.2.6",
-        "optimist": "~0.3.5",
-        "source-map": "~0.1.7"
+        "commander": "~2.20.3",
+        "source-map": "~0.6.1"
       },
       "dependencies": {
-        "async": {
-          "version": "0.2.10",
-          "resolved": "https://registry.npmjs.org/async/-/async-0.2.10.tgz",
-          "integrity": "sha1-trvgsGdLnXGXCMo43owjfLUmw9E=",
+        "commander": {
+          "version": "2.20.3",
+          "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.3.tgz",
+          "integrity": "sha512-GpVkmM8vF2vQUkj2LvZmD35JxeJOLCwJ9cUkugyk2nuhbv3+mJvpLYYt+0+USMxE+oj+ey/lJEnhZw75x/OMcQ==",
           "optional": true
         },
         "source-map": {
-          "version": "0.1.43",
-          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.1.43.tgz",
-          "integrity": "sha1-wkvBRspRfBRx9drL4lcbK3+eM0Y=",
-          "optional": true,
-          "requires": {
-            "amdefine": ">=0.0.4"
-          }
+          "version": "0.6.1",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
+          "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
+          "optional": true
         }
       }
     },
diff --git a/package.json b/package.json
index 5854812..2a820d6 100644
--- a/package.json
+++ b/package.json
@@ -45,7 +45,7 @@
     "eslint-loader": "^1.9.0",
     "extract-text-webpack-plugin": "^3.0.2",
     "file-loader": "^0.11.2",
-    "handlebars": "^1.3.0",
+    "handlebars": "^4.1.2",
     "handlebars-loader": "^1.5.0",
     "html-webpack-plugin": "^2.30.1",
     "js-yaml": "^3.13.1",