diff --git a/package-lock.json b/package-lock.json
index 53d46cb..4db1463 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -38,16 +38,6 @@
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-      "resolved": "https://registry.npmjs.org/align-text/-/align-text-0.1.4.tgz",
-      "integrity": "sha1-DNkKVhCT810KmSVsIrcGlDP60Rc=",
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@@ -272,20 +262,6 @@
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-      "resolved": "https://registry.npmjs.org/camelcase/-/camelcase-1.2.1.tgz",
-      "integrity": "sha1-m7UwTS4LVmmLLHWLCKPqqdqlijk="
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-    "center-align": {
-      "version": "0.1.3",
-      "resolved": "https://registry.npmjs.org/center-align/-/center-align-0.1.3.tgz",
-      "integrity": "sha1-qg0yYptu6XIgBBHL1EYckHvCt60=",
-      "requires": {
-        "align-text": "^0.1.3",
-        "lazy-cache": "^1.0.3"
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       "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
@@ -358,16 +334,6 @@
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-    "cliui": {
-      "version": "2.1.0",
-      "resolved": "https://registry.npmjs.org/cliui/-/cliui-2.1.0.tgz",
-      "integrity": "sha1-S0dXYP+AJkx2LDoXGQMukcf+oNE=",
-      "requires": {
-        "center-align": "^0.1.1",
-        "right-align": "^0.1.1",
-        "wordwrap": "0.0.2"
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@@ -435,11 +401,6 @@
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-      "version": "1.2.0",
-      "resolved": "https://registry.npmjs.org/decamelize/-/decamelize-1.2.0.tgz",
-      "integrity": "sha1-9lNNFRSCabIDUue+4m9QH5oZEpA="
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@@ -1700,11 +1661,6 @@
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-    "lazy-cache": {
-      "version": "1.0.4",
-      "resolved": "https://registry.npmjs.org/lazy-cache/-/lazy-cache-1.0.4.tgz",
-      "integrity": "sha1-odePw6UEdMuAhF07O24dpJpEbo4="
-    },
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       "resolved": "https://registry.npmjs.org/levn/-/levn-0.3.0.tgz",
@@ -1719,11 +1675,6 @@
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     },
-    "longest": {
-      "version": "1.0.1",
-      "resolved": "https://registry.npmjs.org/longest/-/longest-1.0.1.tgz",
-      "integrity": "sha1-MKCy2jj3N3DoKUoNIuZiXtd9AJc="
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@@ -2439,14 +2390,6 @@
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-    "right-align": {
-      "version": "0.1.3",
-      "resolved": "https://registry.npmjs.org/right-align/-/right-align-0.1.3.tgz",
-      "integrity": "sha1-YTObci/mo1FWiSENJOFMlhSGE+8=",
-      "requires": {
-        "align-text": "^0.1.1"
-      }
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       "resolved": "https://registry.npmjs.org/rimraf/-/rimraf-2.6.3.tgz",
@@ -2818,20 +2761,9 @@
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     },
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-      "version": "2.8.29",
-      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-2.8.29.tgz",
-      "integrity": "sha1-KcVzMUgFe7Th913zW3qcty5qWd0=",
-      "requires": {
-        "source-map": "~0.5.1",
-        "uglify-to-browserify": "~1.0.0",
-        "yargs": "~3.10.0"
-      }
-    },
-    "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=",
-      "optional": true
+      "version": "3.15.0",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.15.0.tgz",
+      "integrity": "sha512-x+xdeDWq7FiORDvyIJ0q/waWd4PhjBNOm5dQUOq2AKC0IEjxOS66Ha9tctiVDGcRQuh69K7fgU5oRuTK4cysSg=="
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@@ -2908,21 +2840,11 @@
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       "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
     },
-    "window-size": {
-      "version": "0.1.0",
-      "resolved": "https://registry.npmjs.org/window-size/-/window-size-0.1.0.tgz",
-      "integrity": "sha1-VDjNLqk7IC76Ohn+iIeu58lPnJ0="
-    },
     "word-wrap": {
       "version": "1.2.3",
       "resolved": "https://registry.npmjs.org/word-wrap/-/word-wrap-1.2.3.tgz",
       "integrity": "sha512-Hz/mrNwitNRh/HUAtM/VT/5VH+ygD6DV7mYKZAtHOrbs8U7lvPS6xf7EJKMF0uW1KJCl0H701g3ZGus+muE5vQ=="
     },
-    "wordwrap": {
-      "version": "0.0.2",
-      "resolved": "https://registry.npmjs.org/wordwrap/-/wordwrap-0.0.2.tgz",
-      "integrity": "sha1-t5Zpu0LstAn4PVg8rVLKF+qhZD8="
-    },
     "wrappy": {
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       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
@@ -2940,17 +2862,6 @@
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       "integrity": "sha512-LKYU1iAXJXUgAXn9URjiu+MWhyUXHsvfp7mcuYm9dSUKK0/CjtrUwFAxD82/mCWbtLsGjFIad0wIsod4zrTAEQ=="
-    },
-    "yargs": {
-      "version": "3.10.0",
-      "resolved": "https://registry.npmjs.org/yargs/-/yargs-3.10.0.tgz",
-      "integrity": "sha1-9+572FfdfB0tOMDnTvvWgdFDH9E=",
-      "requires": {
-        "camelcase": "^1.0.2",
-        "cliui": "^2.1.0",
-        "decamelize": "^1.0.0",
-        "window-size": "0.1.0"
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   }
 }
diff --git a/package.json b/package.json
index 0d1564d..2c303f3 100644
--- a/package.json
+++ b/package.json
@@ -39,7 +39,7 @@
     "requirejs": "^2.3.3",
     "requirejs-mustache-loader": "^1.0.5",
     "requirejs-text": "^2.0.15",
-    "uglify-js": "^2.8.21"
+    "uglify-js": "^3.0.0"
   },
   "author": "strg.at <score@strg.at>",
   "license": "LGPL-3.0"