diff --git a/package-lock.json b/package-lock.json
index 5a4d544a..42c61f43 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -15458,10 +15458,9 @@
       }
     },
     "websocket-extensions": {
-      "version": "0.1.3",
-      "resolved": "https://registry.npmjs.org/websocket-extensions/-/websocket-extensions-0.1.3.tgz",
-      "integrity": "sha512-nqHUnMXmBzT0w570r2JpJxfiSD1IzoI+HGVdd3aZ0yNi3ngvQ4jv1dtHt5VGxfI2yj5yqImPhOK4vmIh2xMbGg==",
-      "dev": true
+      "version": "0.1.4",
+      "resolved": "https://registry.npmjs.org/websocket-extensions/-/websocket-extensions-0.1.4.tgz",
+      "integrity": "sha512-OqedPIGOfsDlo31UNwYbCFMSaO9m9G/0faIHj5/dZFDMFqPTcx6UwqyOy3COEaEOg/9VsGIpdqn62W5KhoKSpg=="
     },
     "when": {
       "version": "3.6.4",
diff --git a/package.json b/package.json
index 7272fd21..9ceefbce 100644
--- a/package.json
+++ b/package.json
@@ -39,6 +39,7 @@
     "rxjs": "~6.5.5",
     "serialize-javascript": "^3.0.0",
     "tslib": "^1.10.0",
+    "websocket-extensions": "^0.1.4",
     "xml-writer": "^1.7.0",
     "zone.js": "~0.10.2"
   },