diff --git a/demo/package-lock.json b/demo/package-lock.json
index eee6642..0664dcf 100644
--- a/demo/package-lock.json
+++ b/demo/package-lock.json
@@ -4183,9 +4183,9 @@
       }
     },
     "lodash": {
-      "version": "4.17.15",
-      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.15.tgz",
-      "integrity": "sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==",
+      "version": "4.17.21",
+      "resolved": "https://registry.npmjs.org/lodash/-/lodash-4.17.21.tgz",
+      "integrity": "sha512-v2kDEe57lecTulaDIuNTPy3Ry4gLGJ6Z1O3vE1krgXZNrsQ+LFTGHVxVjcXPs17LhbZVGedAJv8XZ1tvj5FvSg==",
       "dev": true
     },
     "lodash.camelcase": {
@@ -4877,7 +4877,7 @@
           "dependencies": {
             "chalk": {
               "version": "1.1.3",
-              "resolved": "http://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
+              "resolved": "https://registry.npmjs.org/chalk/-/chalk-1.1.3.tgz",
               "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
               "requires": {
                 "ansi-styles": "^2.2.1",
@@ -5097,12 +5097,12 @@
         },
         "minimist": {
           "version": "0.0.8",
-          "resolved": "http://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
+          "resolved": "https://registry.npmjs.org/minimist/-/minimist-0.0.8.tgz",
           "integrity": "sha1-hX/Kv8M5fSYluCKCYuhqp6ARsF0="
         },
         "mkdirp": {
           "version": "0.5.1",
-          "resolved": "http://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
+          "resolved": "https://registry.npmjs.org/mkdirp/-/mkdirp-0.5.1.tgz",
           "integrity": "sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=",
           "requires": {
             "minimist": "0.0.8"