diff --git a/package-lock.json b/package-lock.json
index 08c4b82..023d11f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -199,6 +199,11 @@
             "integrity": "sha512-+Ryf6g3BKoRc7jfp7ad8tM4TtMiaWvbF/1/sQcZPkkS7ag3D5nMBCe2UfOTONtAkaG0tO0ij3C5Lwmf1EiyjHg==",
             "dev": true
         },
+        "async-limiter": {
+            "version": "1.0.1",
+            "resolved": "https://registry.npmjs.org/async-limiter/-/async-limiter-1.0.1.tgz",
+            "integrity": "sha512-csOlWGAcRFJaI6m+F2WKdnMKr4HhdhFVBk0H/QbJFMCr+uO2kwohwXQPxw/9OCxp05r5ghVBFSyioixx3gfkNQ=="
+        },
         "asynckit": {
             "version": "0.4.0",
             "resolved": "https://registry.npmjs.org/asynckit/-/asynckit-0.4.0.tgz",
@@ -1693,11 +1698,6 @@
                 "wordwrap": "~1.0.0"
             }
         },
-        "options": {
-            "version": "0.0.6",
-            "resolved": "https://registry.npmjs.org/options/-/options-0.0.6.tgz",
-            "integrity": "sha1-7CLTEoBrtT5zF3Pnza788cZDEo8="
-        },
         "ordered-read-streams": {
             "version": "1.0.1",
             "resolved": "https://registry.npmjs.org/ordered-read-streams/-/ordered-read-streams-1.0.1.tgz",
@@ -2313,11 +2313,6 @@
             "integrity": "sha512-jw7P2z/h6aPT4AENXDGjcfHTu5CSqzsbZc6YlUIebTyBAq8XaKp78x7VcSh30xwSCcsu5irZkYZUSFP1MrAMbg==",
             "dev": true
         },
-        "ultron": {
-            "version": "1.0.2",
-            "resolved": "https://registry.npmjs.org/ultron/-/ultron-1.0.2.tgz",
-            "integrity": "sha1-rOEWq1V80Zc4ak6I9GhTeMiy5Po="
-        },
         "unc-path-regex": {
             "version": "0.1.2",
             "resolved": "https://registry.npmjs.org/unc-path-regex/-/unc-path-regex-0.1.2.tgz",
@@ -2654,12 +2649,11 @@
             }
         },
         "ws": {
-            "version": "1.1.5",
-            "resolved": "https://registry.npmjs.org/ws/-/ws-1.1.5.tgz",
-            "integrity": "sha512-o3KqipXNUdS7wpQzBHSe180lBGO60SoK0yVo3CYJgb2MkobuWuBX6dhkYP5ORCLd55y+SaflMOV5fqAB53ux4w==",
+            "version": "7.1.2",
+            "resolved": "https://registry.npmjs.org/ws/-/ws-7.1.2.tgz",
+            "integrity": "sha512-gftXq3XI81cJCgkUiAVixA0raD9IVmXqsylCrjRygw4+UOOGzPoxnQ6r/CnVL9i+mDncJo94tSkyrtuuQVBmrg==",
             "requires": {
-                "options": ">=0.0.5",
-                "ultron": "1.0.x"
+                "async-limiter": "^1.0.0"
             }
         },
         "xmldom": {
diff --git a/package.json b/package.json
index 99aba95..d13034e 100644
--- a/package.json
+++ b/package.json
@@ -139,7 +139,7 @@
         "uuid": "^3.3.2",
         "vscode-debugadapter": "^1.32.0",
         "vscode-debugprotocol": "^1.32.0",
-        "ws": "^1.1.1",
+        "ws": "^7.1.2",
         "xmldom": "^0.1.27",
         "xpath": "^0.0.27"
     },
diff --git a/src/logcat.js b/src/logcat.js
index b23b79d..e248786 100644
--- a/src/logcat.js
+++ b/src/logcat.js
@@ -77,8 +77,11 @@ class LogcatContent {
         });
     }
     sendClientMessage(msg) {
-        var clients = LogcatContent._wss.clients.filter(client => client._logcatid === this._logcatid);
-        clients.forEach(client => client.send(msg+'\n'));   // include a newline to try and persuade a buffer write
+        LogcatContent._wss.clients.forEach(client => {
+            if (client._logcatid === this._logcatid) {
+                client.send(msg + '\n');   // include a newline to try and persuade a buffer write
+            }
+        })
     }
     sendDisconnectMsg() {
         this.sendClientMessage(':disconnect');
@@ -111,7 +114,7 @@ class LogcatContent {
     }
     updateLogs() {
         // no point in formatting the data if there are no connected clients
-        var clients = LogcatContent._wss.clients.filter(client => client._logcatid === this._logcatid);
+        var clients = [...LogcatContent._wss.clients].filter(client => client._logcatid === this._logcatid);
         if (clients.length) {
             var lines = '<div class="logblock">' + this._htmllogs.join('') + '</div>';
             clients.forEach(client => client.send(lines));
@@ -187,14 +190,19 @@ LogcatContent.initWebSocketServer = function () {
         port: wssport,
         retries: 0,
         tryCreateWSS() {
-            this.wss = new WebSocketServer({ host: '127.0.0.1', port: this.port }, () => {
+            const wsopts = {
+                host: '127.0.0.1',
+                port: this.port,
+                clientTracking: true,
+            };
+            this.wss = new WebSocketServer(wsopts, () => {
                 // success - save the info and resolve the deferred
                 LogcatContent._wssport = this.port;
                 LogcatContent._wssstartport = this.startport;
                 LogcatContent._wss = this.wss;
-                this.wss.on('connection', client => {
+                this.wss.on('connection', (client, req) => {
                     // the client uses the url path to signify which logcat data it wants
-                    client._logcatid = client.upgradeReq.url.match(/^\/?(.*)$/)[1];
+                    client._logcatid = req.url.match(/^\/?(.*)$/)[1];
                     var lc = LogcatContent.byLogcatID[client._logcatid];
                     if (lc) lc.onClientConnect(client);
                     else client.close();