diff --git a/demo_page/package-lock.json b/demo_page/package-lock.json
index 40c9192..003f048 100644
--- a/demo_page/package-lock.json
+++ b/demo_page/package-lock.json
@@ -140,11 +140,6 @@
       "integrity": "sha512-z/WhQ5FPySLdvREByI2vZiTWwCnF0moMJ1hK9YQwDTHKh6I7/uSckMetoRGb5UBZPC1z0jlw+n/XCgjeH7y1AQ==",
       "dev": true
     },
-    "async-limiter": {
-      "version": "1.0.0",
-      "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.0.tgz",
-      "integrity": "sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg=="
-    },
     "atob": {
       "version": "2.1.2",
       "resolved": "https://registry.npmjs.org/atob/-/atob-2.1.2.tgz",
@@ -2650,12 +2645,9 @@
       }
     },
     "ws": {
-      "version": "7.0.1",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-7.0.1.tgz",
-      "integrity": "sha512-ILHfMbuqLJvnSgYXLgy4kMntroJpe8hT41dOVWM8bxRuw6TK4mgMp9VJUNsZTEc5Bh+Mbs0DJT4M0N+wBG9l9A==",
-      "requires": {
-        "async-limiter": "^1.0.0"
-      }
+      "version": "7.4.6",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.6.tgz",
+      "integrity": "sha512-YmhHDO4MzaDLB+M9ym/mDA5z0naX8j7SIlT8f8z+I0VtzsRbekxEutHSme7NPS2qE8StCYQNUnfWdXta/Yu85A=="
     }
   }
 }
diff --git a/demo_page/package.json b/demo_page/package.json
index ffd2415..143aba8 100644
--- a/demo_page/package.json
+++ b/demo_page/package.json
@@ -14,7 +14,7 @@
   "dependencies": {
     "sirv-cli": "^0.4.4",
     "svelte-color-picker": "^1.0.6",
-    "ws": "^7.0.1"
+    "ws": "^7.4.6"
   },
   "scripts": {
     "build": "rollup -c",