diff --git a/demo/package-lock.json b/demo/package-lock.json
index c49efb6..3567dd4 100644
--- a/demo/package-lock.json
+++ b/demo/package-lock.json
@@ -15,6 +15,8 @@
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       "resolved": "https://registry.npmjs.org/table/-/table-5.2.3.tgz",
@@ -7772,6 +9632,12 @@
         "setimmediate": "^1.0.4"
       }
     },
+    "timsort": {
+      "version": "0.3.0",
+      "resolved": "https://registry.npmjs.org/timsort/-/timsort-0.3.0.tgz",
+      "integrity": "sha1-QFQRqOfmM5/mTbmiNN4R3DHgK9Q=",
+      "dev": true
+    },
     "tiny-emitter": {
       "version": "2.1.0",
       "resolved": "https://registry.npmjs.org/tiny-emitter/-/tiny-emitter-2.1.0.tgz",
@@ -7981,6 +9847,12 @@
       "integrity": "sha1-sxxa6CVIRKOoKBVBzisEuGWnNP8=",
       "dev": true
     },
+    "uniqs": {
+      "version": "2.0.0",
+      "resolved": "https://registry.npmjs.org/uniqs/-/uniqs-2.0.0.tgz",
+      "integrity": "sha1-/+3ks2slKQaW5uFl1KWe25mOawI=",
+      "dev": true
+    },
     "unique-filename": {
       "version": "1.1.1",
       "resolved": "https://registry.npmjs.org/unique-filename/-/unique-filename-1.1.1.tgz",
@@ -8015,6 +9887,12 @@
       "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw=",
       "dev": true
     },
+    "unquote": {
+      "version": "1.1.1",
+      "resolved": "https://registry.npmjs.org/unquote/-/unquote-1.1.1.tgz",
+      "integrity": "sha1-j97XMk7G6IoP+LkF58CYzcCG1UQ=",
+      "dev": true
+    },
     "unset-value": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/unset-value/-/unset-value-1.0.0.tgz",
@@ -8179,6 +10057,12 @@
       "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw=",
       "dev": true
     },
+    "vendors": {
+      "version": "1.0.3",
+      "resolved": "https://registry.npmjs.org/vendors/-/vendors-1.0.3.tgz",
+      "integrity": "sha512-fOi47nsJP5Wqefa43kyWSg80qF+Q3XA6MUkgi7Hp1HQaKDQW4cQrK2D0P7mmbFtsV1N89am55Yru/nyEwRubcw==",
+      "dev": true
+    },
     "viewport-dimensions": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/viewport-dimensions/-/viewport-dimensions-0.2.0.tgz",
@@ -8216,6 +10100,8 @@
     },
     "webpack": {
       "version": "4.29.4",
+      "resolved": "https://registry.npmjs.org/webpack/-/webpack-4.29.4.tgz",
+      "integrity": "sha512-Uu/QgPFZG+w+5wjWIFBgIy+g9vOF3QiLmT2Bl783MQSLjRF/K+GMv2TH3TVNFyPQVEHY8rVnPoQtcqrnqK2H7Q==",
       "dev": true,
       "requires": {
         "@webassemblyjs/ast": "1.8.2",
@@ -8246,6 +10132,8 @@
     },
     "webpack-cli": {
       "version": "3.2.3",
+      "resolved": "https://registry.npmjs.org/webpack-cli/-/webpack-cli-3.2.3.tgz",
+      "integrity": "sha512-Ik3SjV6uJtWIAN5jp5ZuBMWEAaP5E4V78XJ2nI+paFPh8v4HPSwo/myN0r29Xc/6ZKnd2IdrAlpSgNOu2CDQ6Q==",
       "dev": true,
       "requires": {
         "chalk": "^2.4.1",
@@ -8283,6 +10171,8 @@
     },
     "webpack-dev-server": {
       "version": "3.1.14",
+      "resolved": "https://registry.npmjs.org/webpack-dev-server/-/webpack-dev-server-3.1.14.tgz",
+      "integrity": "sha512-mGXDgz5SlTxcF3hUpfC8hrQ11yhAttuUQWf1Wmb+6zo3x6rb7b9mIfuQvAPLdfDRCGRGvakBWHdHOa0I9p/EVQ==",
       "dev": true,
       "requires": {
         "ansi-html": "0.0.7",
@@ -8413,6 +10303,8 @@
     },
     "webpack-merge": {
       "version": "4.2.1",
+      "resolved": "https://registry.npmjs.org/webpack-merge/-/webpack-merge-4.2.1.tgz",
+      "integrity": "sha512-4p8WQyS98bUJcCvFMbdGZyZmsKuWjWVnVHnAS3FFg0HDaRVrPbkivx2RYCre8UiemD67RsiFFLfn4JhLAin8Vw==",
       "dev": true,
       "requires": {
         "lodash": "^4.17.5"
diff --git a/demo/yarn.lock b/demo/yarn.lock
index b292fc8..12334ec 100644
--- a/demo/yarn.lock
+++ b/demo/yarn.lock
@@ -3941,9 +3941,9 @@ lodash.uniq@^4.5.0:
   integrity sha1-0CJTc662Uq3BvILklFM5qEJ1R3M=
 
 lodash@^4.17.10, lodash@^4.17.11, lodash@^4.17.3, lodash@^4.17.4, lodash@^4.17.5:
-  version "4.17.11"
-  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.11.tgz#b39ea6229ef607ecd89e2c8df12536891cac9b8d"
-  integrity sha512-cQKh8igo5QUhZ7lg38DYWAxMvjSAKG0A8wGSVimP07SIUEK2UO+arSRKbRZWtelMtN5V0Hkwh5ryOto/SshYIg==
+  version "4.17.14"
+  resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.14.tgz#9ce487ae66c96254fe20b599f21b6816028078ba"
+  integrity sha512-mmKYbW3GLuJeX+iGP+Y7Gp1AiGHGbXHCOh/jZmrawMmsE7MS4znI3RL2FsjbqOyMayHInjOeykW7PEajUk1/xw==
 
 loglevel@^1.4.1:
   version "1.6.1"