diff --git a/demo/package-lock.json b/demo/package-lock.json
index 86eaa86..a81b2c0 100644
--- a/demo/package-lock.json
+++ b/demo/package-lock.json
@@ -1717,14 +1717,36 @@
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-      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.5.3.tgz",
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+      "version": "4.16.6",
+      "resolved": "https://registry.npmjs.org/browserslist/-/browserslist-4.16.6.tgz",
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-        "caniuse-lite": "^1.0.30000955",
-        "electron-to-chromium": "^1.3.122",
-        "node-releases": "^1.1.12"
+        "caniuse-lite": "^1.0.30001219",
+        "colorette": "^1.2.2",
+        "electron-to-chromium": "^1.3.723",
+        "escalade": "^3.1.1",
+        "node-releases": "^1.1.71"
+      },
+      "dependencies": {
+        "caniuse-lite": {
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+          "resolved": "https://registry.npmjs.org/caniuse-lite/-/caniuse-lite-1.0.30001228.tgz",
+          "integrity": "sha512-QQmLOGJ3DEgokHbMSA8cj2a+geXqmnpyOFT0lhQV6P3/YOJvGDEwoedcwxEQ30gJIwIIunHIicunJ2rzK5gB2A==",
+          "dev": true
+        },
+        "electron-to-chromium": {
+          "version": "1.3.736",
+          "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.736.tgz",
+          "integrity": "sha512-DY8dA7gR51MSo66DqitEQoUMQ0Z+A2DSXFi7tK304bdTVqczCAfUuyQw6Wdg8hIoo5zIxkU1L24RQtUce1Ioig==",
+          "dev": true
+        },
+        "node-releases": {
+          "version": "1.1.72",
+          "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-1.1.72.tgz",
+          "integrity": "sha512-LLUo+PpH3dU6XizX3iVoubUNheF/owjXCZZ5yACDxNnPtgFuludV1ZL3ayK1kVep42Rmm0+R9/Y60NQbZ2bifw==",
+          "dev": true
+        }
       }
     },
     "browserstack": {
@@ -2120,6 +2142,12 @@
       "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU=",
       "dev": true
     },
+    "colorette": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/colorette/-/colorette-1.2.2.tgz",
+      "integrity": "sha512-MKGMzyfeuutC/ZJ1cba9NqcNpfeqMUcYmyF1ZFY6/Cn7CNSAKx6a+s48sqLqyAiZuaP2TcqMhoo+dlwFnVxT9w==",
+      "dev": true
+    },
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@@ -2813,12 +2841,6 @@
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-    "electron-to-chromium": {
-      "version": "1.3.122",
-      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.3.122.tgz",
-      "integrity": "sha512-3RKoIyCN4DhP2dsmleuFvpJAIDOseWH88wFYBzb22CSwoFDSWRc4UAMfrtc9h8nBdJjTNIN3rogChgOy6eFInw==",
-      "dev": true
-    },
     "elliptic": {
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@@ -2988,6 +3010,12 @@
         "es6-promise": "^4.0.3"
       }
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+    "escalade": {
+      "version": "3.1.1",
+      "resolved": "https://registry.npmjs.org/escalade/-/escalade-3.1.1.tgz",
+      "integrity": "sha512-k0er2gUkLf8O0zKJiAhmkTnJlTvINGv7ygDNPbeIsX/TJjGJZHuh9B2UxbsaEkmlEo9MfhrSzmhIlhRlI2GXnw==",
+      "dev": true
+    },
     "escape-html": {
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       "resolved": "https://registry.npmjs.org/escape-html/-/escape-html-1.0.3.tgz",
@@ -6401,15 +6429,6 @@
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-      "resolved": "https://registry.npmjs.org/node-releases/-/node-releases-1.1.12.tgz",
-      "integrity": "sha512-Y+AQ1xdjcgaEzpL65PBEF3fnl1FNKnDh9Zm+AUQLIlyyqtSc4u93jyMN4zrjMzdwKQ10RTr3tgY1x7qpsfF/xg==",
-      "dev": true,
-      "requires": {
-        "semver": "^5.3.0"
-      }
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     "node-sass": {
       "version": "4.11.0",
       "resolved": "https://registry.npmjs.org/node-sass/-/node-sass-4.11.0.tgz",