diff --git a/package-lock.json b/package-lock.json
index 1b8b719..c63e827 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,41 +4,40 @@
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-      "version": "2.20.0",
-      "resolved": "https://registry.npmjs.org/commander/-/commander-2.20.0.tgz",
-      "integrity": "sha512-7j2y+40w61zy6YC2iRNpUe/NwhNyoXrYpHMrSunaMG64nRnaf96zO/KMQR4OyN/UnE5KLyEBnKHd4aG3rskjpQ==",
-      "optional": true
+    "ejs": {
+      "version": "2.7.4",
+      "resolved": "https://registry.npmjs.org/ejs/-/ejs-2.7.4.tgz",
+      "integrity": "sha512-7vmuyh5+kuUyJKePhQfRQBhXV5Ce+RnaeeQArKu1EAMpL3WbgMt5WG6uQZpEVvYSSsxMXRKOewtDk9RaTKXRlA=="
+    },
+    "express-ejs-extend": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/express-ejs-extend/-/express-ejs-extend-0.0.1.tgz",
+      "integrity": "sha1-TBHukXGYEvNKlwfFbTRCX+JLPvA=",
+      "requires": {
+        "ejs": ">=2.4.1"
+      }
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     "handlebars": {
-      "version": "4.1.2",
-      "resolved": "https://registry.npmjs.org/handlebars/-/handlebars-4.1.2.tgz",
-      "integrity": "sha512-nvfrjqvt9xQ8Z/w0ijewdD/vvWDTOweBUm96NTr66Wfvo1mJenBLwcYmPs3TIBP5ruzYGD7Hx/DaM9RmhroGPw==",
+      "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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     "minimist": {
-      "version": "0.0.10",
-      "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.10.tgz",
-      "integrity": "sha1-3j+YVD2/lggr5IrRoMfNqDYwHc8="
+      "version": "1.2.5",
+      "resolved": "https://registry.npmjs.org/minimist/-/minimist-1.2.5.tgz",
+      "integrity": "sha512-FM9nNUYrRBAELZQT3xeZQ7fmMOBg6nWNmJKTcgsJeaLstP/UODVpGsr5OhXhhXg6f+qtJ8uiZ+PUxkDWcgIXLw=="
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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=="
-    },
-    "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"
-      }
+      "version": "2.6.2",
+      "resolved": "https://registry.npmjs.org/neo-async/-/neo-async-2.6.2.tgz",
+      "integrity": "sha512-Yd3UES5mWCSqR+qNT93S3UoYUkqAZ9lLg8a7g9rimsWmYGK8cVToA4/sF3RrshdyV3sAGMXVUmpMYOw+dLpOuw=="
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     "source-map": {
       "version": "0.6.1",
@@ -46,19 +45,15 @@
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     "uglify-js": {
-      "version": "3.6.0",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.6.0.tgz",
-      "integrity": "sha512-W+jrUHJr3DXKhrsS7NUVxn3zqMOFn0hL/Ei6v0anCIMoKC93TjcflTagwIHLW7SfMFfiQuktQyFVCFHGUE0+yg==",
-      "optional": true,
-      "requires": {
-        "commander": "~2.20.0",
-        "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": "0.0.3",
-      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.3.tgz",
-      "integrity": "sha1-o9XabNXAvAAI03I0u68b7WMFkQc="
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-1.0.0.tgz",
+      "integrity": "sha1-J1hIEIkUVqQXHI0CJkQa3pDLyus="
     }
   }
 }
diff --git a/package.json b/package.json
index 7112483..8ef0309 100644
--- a/package.json
+++ b/package.json
@@ -12,6 +12,6 @@
   "dependencies": {
     "ejs": "^2.6.1",
     "express-ejs-extend": "^0.0.1",
-    "handlebars": "^4.1.2"
+    "handlebars": "^4.7.7"
   }
 }