diff --git a/package-lock.json b/package-lock.json
index 312ddf5..6dea596 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -497,7 +497,8 @@
     "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=="
+      "integrity": "sha512-jp/uFnooOiO+L211eZOoSyzpOITMXx1rBITauYykG3BRYPu8h0UcxsPNB04RR5vo4Tyz3+ay17tR6JVf9qzYWg==",
+      "dev": true
     },
     "asynckit": {
       "version": "0.4.0",
@@ -5830,12 +5831,9 @@
       }
     },
     "ws": {
-      "version": "6.1.2",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-6.1.2.tgz",
-      "integrity": "sha512-rfUqzvz0WxmSXtJpPMX2EeASXabOrSMk1ruMOV3JBTBjo4ac2lDjGGsbQSyxj8Odhw5fBib8ZKEjDNvgouNKYw==",
-      "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=="
     },
     "xml-name-validator": {
       "version": "3.0.0",
diff --git a/package.json b/package.json
index 5d6d946..737d3e9 100644
--- a/package.json
+++ b/package.json
@@ -21,7 +21,7 @@
     "elliptic": "^6.4.1",
     "express": "^4.16.4",
     "uuid": "^3.3.2",
-    "ws": "^6.1.2"
+    "ws": "^7.4.6"
   },
   "devDependencies": {
     "jest": "^23.6.0"