diff --git a/demo/package-lock.json b/demo/package-lock.json
index e125d0f0..30bc221a 100644
--- a/demo/package-lock.json
+++ b/demo/package-lock.json
@@ -918,6 +918,12 @@
         "@types/node": "*"
       }
     },
+    "@types/json-schema": {
+      "version": "7.0.11",
+      "resolved": "https://registry.npmjs.org/@types/json-schema/-/json-schema-7.0.11.tgz",
+      "integrity": "sha512-wOuvG1SN4Us4rez+tylwwwCV1psiNVOkJeM3AUWUNWg/jDQY2+HE/444y5gc+jBmRqASOm2Oeh5c1axHobwRKQ==",
+      "dev": true
+    },
     "@types/minimatch": {
       "version": "3.0.5",
       "resolved": "https://registry.npmjs.org/@types/minimatch/-/minimatch-3.0.5.tgz",
@@ -3446,42 +3452,53 @@
       "dev": true
     },
     "file-loader": {
-      "version": "0.9.0",
-      "resolved": "https://registry.npmjs.org/file-loader/-/file-loader-0.9.0.tgz",
-      "integrity": "sha1-HS2t3UJM5tGwfP4/eXMb7TYXq0I=",
+      "version": "6.2.0",
+      "resolved": "https://registry.npmjs.org/file-loader/-/file-loader-6.2.0.tgz",
+      "integrity": "sha512-qo3glqyTa61Ytg4u73GultjHGjdRyig3tG6lPtyX/jOEJvHif9uB0/OCI2Kif6ctF3caQTW2G5gym21oAsI4pw==",
       "dev": true,
       "requires": {
-        "loader-utils": "~0.2.5"
+        "loader-utils": "^2.0.0",
+        "schema-utils": "^3.0.0"
       },
       "dependencies": {
-        "big.js": {
-          "version": "3.2.0",
-          "resolved": "https://registry.npmjs.org/big.js/-/big.js-3.2.0.tgz",
-          "integrity": "sha512-+hN/Zh2D08Mx65pZ/4g5bsmNiZUuChDiQfTUQ7qJr4/kuopCr88xZsAXv6mBoZEsUI4OuGHlX59qE94K2mMW8Q==",
-          "dev": true
-        },
-        "emojis-list": {
-          "version": "2.1.0",
-          "resolved": "https://registry.npmjs.org/emojis-list/-/emojis-list-2.1.0.tgz",
-          "integrity": "sha1-TapNnbAPmBmIDHn6RXrlsJof04k=",
-          "dev": true
+        "ajv": {
+          "version": "6.12.6",
+          "resolved": "https://registry.npmjs.org/ajv/-/ajv-6.12.6.tgz",
+          "integrity": "sha512-j3fVLgvTo527anyYyJOGTYJbG+vnnQYvE0m5mmkc1TK+nxAppkCLMIL0aZ4dblVCNoGShhm+kzE4ZUykBoMg4g==",
+          "dev": true,
+          "requires": {
+            "fast-deep-equal": "^3.1.1",
+            "fast-json-stable-stringify": "^2.0.0",
+            "json-schema-traverse": "^0.4.1",
+            "uri-js": "^4.2.2"
+          }
         },
-        "json5": {
-          "version": "0.5.1",
-          "resolved": "https://registry.npmjs.org/json5/-/json5-0.5.1.tgz",
-          "integrity": "sha1-Hq3nrMASA0rYTiOWdn6tn6VJWCE=",
+        "ajv-keywords": {
+          "version": "3.5.2",
+          "resolved": "https://registry.npmjs.org/ajv-keywords/-/ajv-keywords-3.5.2.tgz",
+          "integrity": "sha512-5p6WTN0DdTGVQk6VjcEju19IgaHudalcfabD7yhDGeA6bcQnmL+CpveLJq/3hvfwd1aof6L386Ougkx6RfyMIQ==",
           "dev": true
         },
         "loader-utils": {
-          "version": "0.2.17",
-          "resolved": "https://registry.npmjs.org/loader-utils/-/loader-utils-0.2.17.tgz",
-          "integrity": "sha1-+G5jdNQyBabmxg6RlvF8Apm/s0g=",
+          "version": "2.0.4",
+          "resolved": "https://registry.npmjs.org/loader-utils/-/loader-utils-2.0.4.tgz",
+          "integrity": "sha512-xXqpXoINfFhgua9xiqD8fPFHgkoq1mmmpE92WlDbm9rNRd/EbRb+Gqf908T2DMfuHjjJlksiK2RbHVOdD/MqSw==",
+          "dev": true,
+          "requires": {
+            "big.js": "^5.2.2",
+            "emojis-list": "^3.0.0",
+            "json5": "^2.1.2"
+          }
+        },
+        "schema-utils": {
+          "version": "3.1.1",
+          "resolved": "https://registry.npmjs.org/schema-utils/-/schema-utils-3.1.1.tgz",
+          "integrity": "sha512-Y5PQxS4ITlC+EahLuXaY86TXfR7Dc5lw294alXOq86JAHCihAIZfqv8nNCWvaEJvaC51uN9hbLGeV0cFBdH+Fw==",
           "dev": true,
           "requires": {
-            "big.js": "^3.1.3",
-            "emojis-list": "^2.0.0",
-            "json5": "^0.5.0",
-            "object-assign": "^4.0.1"
+            "@types/json-schema": "^7.0.8",
+            "ajv": "^6.12.5",
+            "ajv-keywords": "^3.5.2"
           }
         }
       }
@@ -5237,9 +5254,9 @@
       "dev": true
     },
     "loader-utils": {
-      "version": "1.4.0",
-      "resolved": "https://registry.npmjs.org/loader-utils/-/loader-utils-1.4.0.tgz",
-      "integrity": "sha512-qH0WSMBtn/oHuwjy/NucEgbx5dbxxnxup9s4PVXJUDHZBQY+s0NWA9rJf53RBnQZxfch7euUui7hpoAPvALZdA==",
+      "version": "1.4.2",
+      "resolved": "https://registry.npmjs.org/loader-utils/-/loader-utils-1.4.2.tgz",
+      "integrity": "sha512-I5d00Pd/jwMD2QCduo657+YM/6L3KZu++pmX9VFncxaxvHcru9jx1lBaFft+r4Mt2jK0Yhp41XlRAihzPxHNCg==",
       "dev": true,
       "requires": {
         "big.js": "^5.2.2",
diff --git a/demo/package.json b/demo/package.json
index 7042bf4c..50591d86 100644
--- a/demo/package.json
+++ b/demo/package.json
@@ -14,7 +14,7 @@
     "babel-loader": "^8.0.4",
     "cross-env": "^3.0.0",
     "css-loader": "^3.5.2",
-    "file-loader": "^0.9.0",
+    "file-loader": "^6.2.0",
     "node-sass": "^4.13.0",
     "optimize-css-assets-webpack-plugin": "^5.0.1",
     "sass-loader": "^8.0.0",