diff --git a/demo/package-lock.json b/demo/package-lock.json
index 028a3bc..be16597 100644
--- a/demo/package-lock.json
+++ b/demo/package-lock.json
@@ -10331,9 +10331,9 @@
       }
     },
     "terser": {
-      "version": "4.6.4",
-      "resolved": "https://registry.npmjs.org/terser/-/terser-4.6.4.tgz",
-      "integrity": "sha512-5fqgBPLgVHZ/fVvqRhhUp9YUiGXhFJ9ZkrZWD9vQtFBR4QIGTnbsb+/kKqSqfgp3WnBwGWAFnedGTtmX1YTn0w==",
+      "version": "4.8.1",
+      "resolved": "https://registry.npmjs.org/terser/-/terser-4.8.1.tgz",
+      "integrity": "sha512-4GnLC0x667eJG0ewJTa6z/yXrbLGv80D9Ru6HIpCQmO+Q4PfEtBFi0ObSckqwL6VyQv/7ENJieXHo2ANmdQwgw==",
       "dev": true,
       "requires": {
         "commander": "^2.20.0",
@@ -10354,9 +10354,9 @@
           "dev": true
         },
         "source-map-support": {
-          "version": "0.5.16",
-          "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.16.tgz",
-          "integrity": "sha512-efyLRJDr68D9hBBNIPWFjhpFzURh+KJykQwvMyW5UiZzYwoF6l4YMMDIJJEyFWxWCqfyxLzz6tSfUFR+kXXsVQ==",
+          "version": "0.5.21",
+          "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.21.tgz",
+          "integrity": "sha512-uBHU3L3czsIyYXKX88fdrGovxdSCoTGDRZ6SYXtSRxLZUzHg5P/66Ht6uoUlHu9EZod+inXhKo3qQgwXUT/y1w==",
           "dev": true,
           "requires": {
             "buffer-from": "^1.0.0",