diff --git a/demo/package-lock.json b/demo/package-lock.json
index a495607..cb500d3 100644
--- a/demo/package-lock.json
+++ b/demo/package-lock.json
@@ -4481,14 +4481,14 @@
       "dev": true
     },
     "node_modules/axios": {
-      "version": "0.18.0",
-      "resolved": "https://registry.npmjs.org/axios/-/axios-0.18.0.tgz",
-      "integrity": "sha1-MtU+SFHv3AoRmTts0AB4nXDAUQI=",
+      "version": "0.18.1",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-0.18.1.tgz",
+      "integrity": "sha512-0BfJq4NSfQXd+SkFdrvFbG7addhYSBA2mQwISr46pD6E5iqkWg02RAs8vyTT/j0RTnoYmeXauBuSv1qKwR179g==",
       "deprecated": "Critical security vulnerability fixed in v0.21.1. For more information, see https://github.com/axios/axios/pull/3410",
       "dev": true,
       "dependencies": {
-        "follow-redirects": "^1.3.0",
-        "is-buffer": "^1.1.5"
+        "follow-redirects": "1.5.10",
+        "is-buffer": "^2.0.2"
       }
     },
     "node_modules/axios-retry": {
@@ -4500,6 +4500,50 @@
         "is-retry-allowed": "^1.1.0"
       }
     },
+    "node_modules/axios/node_modules/debug": {
+      "version": "3.1.0",
+      "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
+      "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+      "dev": true,
+      "dependencies": {
+        "ms": "2.0.0"
+      }
+    },
+    "node_modules/axios/node_modules/follow-redirects": {
+      "version": "1.5.10",
+      "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.5.10.tgz",
+      "integrity": "sha512-0V5l4Cizzvqt5D44aTXbFZz+FtyXV1vrDN6qrelxtfYQKW0KO0W2T/hkE8xvGa/540LkZlkaUjO4ailYTFtHVQ==",
+      "dev": true,
+      "dependencies": {
+        "debug": "=3.1.0"
+      },
+      "engines": {
+        "node": ">=4.0"
+      }
+    },
+    "node_modules/axios/node_modules/is-buffer": {
+      "version": "2.0.5",
+      "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-2.0.5.tgz",
+      "integrity": "sha512-i2R6zNFDwgEHJyQUtJEk0XFi1i0dPFn/oqjK3/vPCcDeJvW5NQ83V8QbicfF1SupOaB0h8ntgBC2YiE7dfyctQ==",
+      "dev": true,
+      "funding": [
+        {
+          "type": "github",
+          "url": "https://github.com/sponsors/feross"
+        },
+        {
+          "type": "patreon",
+          "url": "https://www.patreon.com/feross"
+        },
+        {
+          "type": "consulting",
+          "url": "https://feross.org/support"
+        }
+      ],
+      "engines": {
+        "node": ">=4"
+      }
+    },
     "node_modules/babel-eslint": {
       "version": "10.0.1",
       "resolved": "https://registry.npmjs.org/babel-eslint/-/babel-eslint-10.0.1.tgz",
@@ -21729,13 +21773,39 @@
       }
     },
     "axios": {
-      "version": "0.18.0",
-      "resolved": "https://registry.npmjs.org/axios/-/axios-0.18.0.tgz",
-      "integrity": "sha1-MtU+SFHv3AoRmTts0AB4nXDAUQI=",
+      "version": "0.18.1",
+      "resolved": "https://registry.npmjs.org/axios/-/axios-0.18.1.tgz",
+      "integrity": "sha512-0BfJq4NSfQXd+SkFdrvFbG7addhYSBA2mQwISr46pD6E5iqkWg02RAs8vyTT/j0RTnoYmeXauBuSv1qKwR179g==",
       "dev": true,
       "requires": {
-        "follow-redirects": "^1.3.0",
-        "is-buffer": "^1.1.5"
+        "follow-redirects": "1.5.10",
+        "is-buffer": "^2.0.2"
+      },
+      "dependencies": {
+        "debug": {
+          "version": "3.1.0",
+          "resolved": "https://registry.npmjs.org/debug/-/debug-3.1.0.tgz",
+          "integrity": "sha512-OX8XqP7/1a9cqkxYw2yXss15f26NKWBpDXQd0/uK/KPqdQhxbPa994hnzjcE2VqQpDslf55723cKPUOGSmMY3g==",
+          "dev": true,
+          "requires": {
+            "ms": "2.0.0"
+          }
+        },
+        "follow-redirects": {
+          "version": "1.5.10",
+          "resolved": "https://registry.npmjs.org/follow-redirects/-/follow-redirects-1.5.10.tgz",
+          "integrity": "sha512-0V5l4Cizzvqt5D44aTXbFZz+FtyXV1vrDN6qrelxtfYQKW0KO0W2T/hkE8xvGa/540LkZlkaUjO4ailYTFtHVQ==",
+          "dev": true,
+          "requires": {
+            "debug": "=3.1.0"
+          }
+        },
+        "is-buffer": {
+          "version": "2.0.5",
+          "resolved": "https://registry.npmjs.org/is-buffer/-/is-buffer-2.0.5.tgz",
+          "integrity": "sha512-i2R6zNFDwgEHJyQUtJEk0XFi1i0dPFn/oqjK3/vPCcDeJvW5NQ83V8QbicfF1SupOaB0h8ntgBC2YiE7dfyctQ==",
+          "dev": true
+        }
       }
     },
     "axios-retry": {