diff --git a/package-lock.json b/package-lock.json
index 4e741cc..a472a59 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -4,6 +4,69 @@
   "lockfileVersion": 1,
   "requires": true,
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+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.8.0.tgz",
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+      "dev": true,
+      "requires": {
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+      "dev": true,
+      "requires": {
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+        "esutils": "^2.0.2",
+        "js-tokens": "^4.0.0"
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+          "dev": true,
+          "requires": {
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+          }
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+        "chalk": {
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+          "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
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+          "dev": true,
+          "requires": {
+            "ansi-styles": "^3.2.1",
+            "escape-string-regexp": "^1.0.5",
+            "supports-color": "^5.3.0"
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+        "has-flag": {
+          "version": "3.0.0",
+          "resolved": "https://registry.npmjs.org/has-flag/-/has-flag-3.0.0.tgz",
+          "integrity": "sha1-tdRU3CGZriJWmfNGfloH87lVuv0=",
+          "dev": true
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+        "js-tokens": {
+          "version": "4.0.0",
+          "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-4.0.0.tgz",
+          "integrity": "sha512-RdJUflcE3cUzKiMqQgsCu06FPu9UdIJO0beYbPhHN4k6apgJtifcoCtT9bcxOpYBtpD2kCM6Sbzg4CausW/PKQ==",
+          "dev": true
+        },
+        "supports-color": {
+          "version": "5.5.0",
+          "resolved": "https://registry.npmjs.org/supports-color/-/supports-color-5.5.0.tgz",
+          "integrity": "sha512-QjVjwdXIt408MIiAqCX4oUKsgU2EqAGzs2Ppkm4aQYbjm+ZEWEcW4SfFNTr4uMNZma0ey4f5lgLrkB0aX0QMow==",
+          "dev": true,
+          "requires": {
+            "has-flag": "^3.0.0"
+          }
+        }
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+    },
     "@zeit/schemas": {
       "version": "1.7.0",
       "resolved": "https://registry.npmjs.org/@zeit/schemas/-/schemas-1.7.0.tgz",
@@ -3233,9 +3296,9 @@
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-      "resolved": "https://registry.npmjs.org/escodegen/-/escodegen-1.12.0.tgz",
-      "integrity": "sha512-TuA+EhsanGcme5T3R0L80u4t8CpbXQjegRmf7+FPTJrtCTErXFeelblRgHQa1FofEzqYYJmJ/OqjTwREp9qgmg==",
+      "version": "1.12.1",
+      "resolved": "https://registry.npmjs.org/escodegen/-/escodegen-1.12.1.tgz",
+      "integrity": "sha512-Q8t2YZ+0e0pc7NRVj3B4tSQ9rim1oi4Fh46k2xhJ2qOiEwhQfdjyEQddWdj7ZFaKmU+5104vn1qrcjEPWq+bgQ==",
       "dev": true,
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@@ -7236,9 +7299,9 @@
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-      "resolved": "https://registry.npmjs.org/psl/-/psl-1.4.0.tgz",
-      "integrity": "sha512-HZzqCGPecFLyoRj5HLfuDSKYTJkAfB5thKBIkRHtGjWwY7p1dAyveIbXIq4tO0KYfDF2tHqPUgY9SDnGm00uFw==",
+      "version": "1.7.0",
+      "resolved": "https://registry.npmjs.org/psl/-/psl-1.7.0.tgz",
+      "integrity": "sha512-5NsSEDv8zY70ScRnOTn7bK7eanl2MvFrOrS/R6x+dBt5g1ghnj9Zv90kO8GwT8gxcu2ANyFprnFYB85IogIJOQ==",
       "dev": true
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@@ -7951,30 +8014,13 @@
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-      "resolved": "https://registry.npmjs.org/rollup-plugin-uglify/-/rollup-plugin-uglify-2.0.1.tgz",
-      "integrity": "sha1-Z7N60e/a+9g69MNrQMGJ7khmyWk=",
+      "version": "4.0.0",
+      "resolved": "https://registry.npmjs.org/rollup-plugin-uglify/-/rollup-plugin-uglify-4.0.0.tgz",
+      "integrity": "sha512-f6W31EQLzxSEYfN3x6/lyljHqXSoCjXKcTsnwz3evQvHgU1+qTzU2SE0SIG7tbAvaCewp2UaZ5x3k6nYsxOP9A==",
       "dev": true,
       "requires": {
-        "uglify-js": "^3.0.9"
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-          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
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-          "dev": true
-        },
-        "uglify-js": {
-          "version": "3.1.4",
-          "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.1.4.tgz",
-          "integrity": "sha512-DcbkPg11Lw2lAWpwCmQDX+qoR4JiII6ypsQmF6tscZtlxGPFAmSRUGuMoVT3/0EHqypVik/TpkH4ITiMJeQqQA==",
-          "dev": true,
-          "requires": {
-            "commander": "~2.11.0",
-            "source-map": "~0.6.1"
-          }
-        }
+        "@babel/code-frame": "^7.0.0-beta.47",
+        "uglify-js": "^3.3.25"
       }
     },
     "rollup-pluginutils": {
@@ -9253,6 +9299,30 @@
       "integrity": "sha1-hnrHTjhkGHsdPUfZlqeOxciDB3c=",
       "dev": true
     },
+    "uglify-js": {
+      "version": "3.7.5",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.7.5.tgz",
+      "integrity": "sha512-GFZ3EXRptKGvb/C1Sq6nO1iI7AGcjyqmIyOw0DrD0675e+NNbGO72xmMM2iEBdFbxaTLo70NbjM/Wy54uZIlsg==",
+      "dev": true,
+      "requires": {
+        "commander": "~2.20.3",
+        "source-map": "~0.6.1"
+      },
+      "dependencies": {
+        "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==",
+          "dev": true
+        },
+        "source-map": {
+          "version": "0.6.1",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
+          "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g==",
+          "dev": true
+        }
+      }
+    },
     "ultron": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.1.1.tgz",
@@ -9835,9 +9905,9 @@
       "dev": true
     },
     "xmldom": {
-      "version": "0.1.27",
-      "resolved": "https://registry.npmjs.org/xmldom/-/xmldom-0.1.27.tgz",
-      "integrity": "sha1-1QH5ezvbQDr4757MIFcxh6rawOk=",
+      "version": "0.1.31",
+      "resolved": "https://registry.npmjs.org/xmldom/-/xmldom-0.1.31.tgz",
+      "integrity": "sha512-yS2uJflVQs6n+CyjHoaBmVSqIDevTAWrzMmjG1Gc7h1qQ7uVozNhEPJAwZXWyGQ/Gafo3fCwrcaokezLPupVyQ==",
       "dev": true
     },
     "xmlhttprequest-ssl": {
diff --git a/package.json b/package.json
index e2b4e78..d6d81e4 100644
--- a/package.json
+++ b/package.json
@@ -68,7 +68,7 @@
     "rollup-plugin-commonjs": "^8.2.1",
     "rollup-plugin-node-resolve": "^3.0.0",
     "rollup-plugin-replace": "^2.0.0",
-    "rollup-plugin-uglify": "^2.0.1",
+    "rollup-plugin-uglify": "^4.0.0",
     "serve": "^9.4.0"
   },
   "jspm": {