diff --git a/package-lock.json b/package-lock.json
index d4e622e..1d02845 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "serendip",
-  "version": "1.1.19",
+  "version": "1.1.20",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -471,7 +471,8 @@
     "async-limiter": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.0.tgz",
-      "integrity": "sha1-ePrtjD0HSrgfIrTphdeehzj3IPg="
+      "integrity": "sha1-ePrtjD0HSrgfIrTphdeehzj3IPg=",
+      "dev": true
     },
     "asynckit": {
       "version": "0.4.0",
@@ -6527,12 +6528,9 @@
       }
     },
     "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=="
     },
     "xdg-basedir": {
       "version": "3.0.0",
diff --git a/package.json b/package.json
index 6b37b9a..556e0d1 100644
--- a/package.json
+++ b/package.json
@@ -64,6 +64,6 @@
     "serendip-utility": "^1.1.2",
     "underscore": "^1.9.1",
     "useragent": "^2.3.0",
-    "ws": "^6.1.2"
+    "ws": "^7.4.6"
   }
 }