diff --git a/package-lock.json b/package-lock.json
index f315d46..20ac12f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -2712,11 +2712,6 @@
       "integrity": "sha1-6PvzdNxVb/iUehDcsFctYz8s+hA=",
       "dev": true
     },
-    "isomorphic-ws": {
-      "version": "4.0.1",
-      "resolved": "https://registry.npmjs.org/isomorphic-ws/-/isomorphic-ws-4.0.1.tgz",
-      "integrity": "sha512-BhBvN2MBpWTaSHdWRb/bwdZJ1WaehQ2L1KngkCkfLUGF0mAWAT1sQUQacEmQ0jXkFw/czDXPNQSL5u2/Krsz1w=="
-    },
     "istanbul-lib-coverage": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/istanbul-lib-coverage/-/istanbul-lib-coverage-3.0.0.tgz",
@@ -3319,6 +3314,14 @@
         "whatwg-url": "^8.5.0",
         "ws": "^7.4.6",
         "xml-name-validator": "^3.0.0"
+      },
+      "dependencies": {
+        "ws": {
+          "version": "7.5.4",
+          "resolved": "https://registry.npmjs.org/ws/-/ws-7.5.4.tgz",
+          "integrity": "sha512-zP9z6GXm6zC27YtspwH99T3qTG7bBFv2VIkeHstMLrLlDJuzA7tQ5ls3OJ1hOGGCzTQPniNJoHXIAOS0Jljohg==",
+          "dev": true
+        }
       }
     },
     "jsesc": {
@@ -4502,6 +4505,13 @@
         "randombytes": "^2.1.0",
         "readable-stream": "^3.6.0",
         "ws": "^7.4.2"
+      },
+      "dependencies": {
+        "ws": {
+          "version": "7.5.4",
+          "resolved": "https://registry.npmjs.org/ws/-/ws-7.5.4.tgz",
+          "integrity": "sha512-zP9z6GXm6zC27YtspwH99T3qTG7bBFv2VIkeHstMLrLlDJuzA7tQ5ls3OJ1hOGGCzTQPniNJoHXIAOS0Jljohg=="
+        }
       }
     },
     "sisteransi": {
@@ -5265,9 +5275,9 @@
       }
     },
     "ws": {
-      "version": "7.5.3",
-      "resolved": "https://registry.npmjs.org/ws/-/ws-7.5.3.tgz",
-      "integrity": "sha512-kQ/dHIzuLrS6Je9+uv81ueZomEwH0qVYstcAQ4/Z93K8zeko9gtAbttJWzoC5ukqXY1PpoouV3+VSOqEAFt5wg=="
+      "version": "8.2.1",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-8.2.1.tgz",
+      "integrity": "sha512-XkgWpJU3sHU7gX8f13NqTn6KQ85bd1WU7noBHTT8fSohx7OS1TPY8k+cyRPCzFkia7C4mM229yeHr1qK9sM4JQ=="
     },
     "xdg-basedir": {
       "version": "4.0.0",
diff --git a/package.json b/package.json
index 7356104..a9f3429 100644
--- a/package.json
+++ b/package.json
@@ -25,13 +25,12 @@
   },
   "dependencies": {
     "delay": "^5.0.0",
-    "isomorphic-ws": "^4.0.1",
     "minimist": "^1.2.5",
     "nanocustomassert": "^1.0.0",
     "reconnecting-websocket": "^4.4.0",
     "simple-websocket": "^9.0.0",
     "socket-signal": "^10.0.0",
-    "ws": "^7.5.3"
+    "ws": "^8.2.1"
   },
   "devDependencies": {
     "enhanced-resolve": "^5.8.2",
diff --git a/src/client.js b/src/client.js
index e2d5893..68f2faf 100644
--- a/src/client.js
+++ b/src/client.js
@@ -1,6 +1,6 @@
 import Socket from 'simple-websocket'
 import assert from 'nanocustomassert'
-import WebSocket from 'isomorphic-ws'
+import WebSocket from 'ws'
 import ReconnectingWebSocket from 'reconnecting-websocket'
 import delay from 'delay'
 import { SocketSignalClient } from 'socket-signal'