diff --git a/package-lock.json b/package-lock.json
index d6d4eb6..570d98d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -7,24 +7,12 @@
       "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.1.tgz",
       "integrity": "sha512-csOlWGAcRFJaI6m+F2WKdnMKr4HhdhFVBk0H/QbJFMCr+uO2kwohwXQPxw/9OCxp05r5ghVBFSyioixx3gfkNQ=="
     },
-    "safe-buffer": {
-      "version": "5.1.2",
-      "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
-      "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
-    },
-    "ultron": {
-      "version": "1.1.1",
-      "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.1.1.tgz",
-      "integrity": "sha512-UIEXBNeYmKptWH6z8ZnqTeS8fV74zG0/eRU9VGkpzz+LIJNs8W/zM/L+7ctCkRrgbNnnR0xxw4bKOr0cW0N0Og=="
-    },
     "ws": {
-      "version": "3.3.1",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-3.3.1.tgz",
-      "integrity": "sha512-8A/uRMnQy8KCQsmep1m7Bk+z/+LIkeF7w+TDMLtX1iZm5Hq9HsUDmgFGaW1ACW5Cj0b2Qo7wCvRhYN2ErUVp/A==",
+      "version": "5.2.4",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-5.2.4.tgz",
+      "integrity": "sha512-fFCejsuC8f9kOSu9FYaOw8CdO68O3h5v0lg4p74o8JqWpwTf9tniOD+nOB78aWoVSS6WptVUmDrp/KPsMVBWFQ==",
       "requires": {
-        "async-limiter": "~1.0.0",
-        "safe-buffer": "~5.1.0",
-        "ultron": "~1.1.0"
+        "async-limiter": "~1.0.0"
       }
     }
   }
diff --git a/package.json b/package.json
index fae0a7e..810f824 100644
--- a/package.json
+++ b/package.json
@@ -1 +1 @@
-{ "dependencies": { "ws": "3.3.1" } }
+{ "dependencies": { "ws": "5.2.4" } }