diff --git a/package-lock.json b/package-lock.json
index d3de222..4caa40d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,17 +4,6 @@
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@@ -64,16 +53,6 @@
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@@ -315,12 +294,6 @@
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@@ -367,21 +340,6 @@
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-      "integrity": "sha1-MeohpzS6ubuw8yRm2JOupR5KPGQ=",
-      "dev": true,
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-    "lazy-cache": {
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-      "resolved": "https://registry.npmjs.org/lazy-cache/-/lazy-cache-1.0.4.tgz",
-      "integrity": "sha1-odePw6UEdMuAhF07O24dpJpEbo4=",
-      "dev": true
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@@ -410,12 +368,6 @@
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-      "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
-      "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc=",
-      "dev": true
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@@ -657,12 +609,6 @@
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-      "resolved": "https://registry.npmjs.org/repeat-string/-/repeat-string-1.6.1.tgz",
-      "integrity": "sha1-jcrkcOHIirwtYA//Sndihtp15jc=",
-      "dev": true
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@@ -696,15 +642,6 @@
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-      "resolved": "https://registry.npmjs.org/right-align/-/right-align-0.1.3.tgz",
-      "integrity": "sha1-YTObci/mo1FWiSENJOFMlhSGE+8=",
-      "dev": true,
-      "requires": {
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-      }
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@@ -832,53 +769,10 @@
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-      "integrity": "sha1-KcVzMUgFe7Th913zW3qcty5qWd0=",
-      "dev": true,
-      "requires": {
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-          "integrity": "sha1-m7UwTS4LVmmLLHWLCKPqqdqlijk=",
-          "dev": true
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-          "integrity": "sha1-S0dXYP+AJkx2LDoXGQMukcf+oNE=",
-          "dev": true,
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-            "right-align": "0.1.3",
-            "wordwrap": "0.0.2"
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-          "integrity": "sha1-9+572FfdfB0tOMDnTvvWgdFDH9E=",
-          "dev": true,
-          "requires": {
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-            "cliui": "2.1.0",
-            "decamelize": "1.2.0",
-            "window-size": "0.1.0"
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-    "uglify-to-browserify": {
-      "version": "1.0.2",
-      "resolved": "https://registry.npmjs.org/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz",
-      "integrity": "sha1-bgkk1r2mta/jSeOabWMoUKD4grc=",
-      "dev": true,
-      "optional": true
+      "version": "3.14.0",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.14.0.tgz",
+      "integrity": "sha512-R/tiGB1ZXp2BC+TkRGLwj8xUZgdfT2f4UZEgX6aVjJ5uttPrr4fYmwTWDGqVnBCLbOXRMY6nr/BTbwCtVfps0g==",
+      "dev": true
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@@ -907,18 +801,6 @@
       "resolved": "https://registry.npmjs.org/which-module/-/which-module-2.0.0.tgz",
       "integrity": "sha1-2e8H3Od7mQK4o6j6SzHD4/fm6Ho="
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-    "window-size": {
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-      "resolved": "https://registry.npmjs.org/window-size/-/window-size-0.1.0.tgz",
-      "integrity": "sha1-VDjNLqk7IC76Ohn+iIeu58lPnJ0=",
-      "dev": true
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-    "wordwrap": {
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-      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.2.tgz",
-      "integrity": "sha1-t5Zpu0LstAn4PVg8rVLKF+qhZD8=",
-      "dev": true
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     "wowjs": {
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       "resolved": "https://registry.npmjs.org/wowjs/-/wowjs-1.1.3.tgz",
diff --git a/package.json b/package.json
index 45c3543..7e8302f 100644
--- a/package.json
+++ b/package.json
@@ -37,6 +37,6 @@
   "devDependencies": {
     "clean-css": "^4.1.11",
     "shelljs": "^0.7.6",
-    "uglify-js": "^2.7.5"
+    "uglify-js": "^3.14.0"
   }
 }