Updated packages

Author: aarongustafson

package.json

@@ -44,7 +44,7 @@
     "clean-css": "^4.2.3",
     "html-minifier": "^4.0.0",
     "striptags": "^3.1.1",
-    "uglify-es": "^3.3.9",
+    "uglify-js": "^3.16.2",
     "utf-8-validate": "^5.0.5"
   }
 }