diff --git a/example/server/index.js b/example/server/index.js
index 4e9b298..1bd5cfd 100644
--- a/example/server/index.js
+++ b/example/server/index.js
@@ -13,8 +13,8 @@ var httpsServer = https.createServer({
 
 var wss = new WebSocketServer({ server: httpsServer });
 
-wss.on('connection', function (ws) {
-    var connectionId = ws.upgradeReq.headers['sec-websocket-key'];
+wss.on('connection', function (ws, req) {
+    var connectionId = req.headers['sec-websocket-key'];
     var isMaster = false;
 
     if (!masterId) {
diff --git a/example/server/package-lock.json b/example/server/package-lock.json
index 3963313..83e7cf5 100644
--- a/example/server/package-lock.json
+++ b/example/server/package-lock.json
@@ -1,8 +1,43 @@
 {
   "name": "server",
   "version": "0.0.1",
-  "lockfileVersion": 1,
+  "lockfileVersion": 2,
   "requires": true,
+  "packages": {
+    "": {
+      "version": "0.0.1",
+      "license": "ISC",
+      "dependencies": {
+        "fs": "*",
+        "http": "*",
+        "https": "*",
+        "ws": "*"
+      }
+    },
+    "node_modules/fs": {
+      "version": "0.0.2",
+      "resolved": "https://registry.npmjs.org/fs/-/fs-0.0.2.tgz",
+      "integrity": "sha1-4fJE7zkzwbKmS9R5kTYGDQ9ZFPg="
+    },
+    "node_modules/http": {
+      "version": "0.0.0",
+      "resolved": "https://registry.npmjs.org/http/-/http-0.0.0.tgz",
+      "integrity": "sha1-huYybSnF0Dnen6xYSkVon5KfT3I="
+    },
+    "node_modules/https": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/https/-/https-1.0.0.tgz",
+      "integrity": "sha1-PDfHrhqO65ZpBKKtHpdaGUt+06Q="
+    },
+    "node_modules/ws": {
+      "version": "7.4.0",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.0.tgz",
+      "integrity": "sha512-kyFwXuV/5ymf+IXhS6f0+eAFvydbaBW3zjpT6hUdAh/hbVjTIB5EHBGi0bPoCLSK2wcuz3BrEkB9LrYv1Nm4NQ==",
+      "engines": {
+        "node": ">=8.3.0"
+      }
+    }
+  },
   "dependencies": {
     "fs": {
       "version": "0.0.2",
diff --git a/package-lock.json b/package-lock.json
index f02cfac..8e075f6 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,8 +1,28 @@
 {
   "name": "ws-audio-api",
-  "version": "0.1.5",
-  "lockfileVersion": 1,
+  "version": "0.2",
+  "lockfileVersion": 2,
   "requires": true,
+  "packages": {
+    "": {
+      "version": "0.2",
+      "license": "MIT",
+      "dependencies": {
+        "uglify-js": "^3.4.5"
+      }
+    },
+    "node_modules/uglify-js": {
+      "version": "3.11.5",
+      "resolved": "https://registry.npmjs.org/uglify-js/-/uglify-js-3.11.5.tgz",
+      "integrity": "sha512-btvv/baMqe7HxP7zJSF7Uc16h1mSfuuSplT0/qdjxseesDU+yYzH33eHBH+eMdeRXwujXspaCTooWHQVVBh09w==",
+      "bin": {
+        "uglifyjs": "bin/uglifyjs"
+      },
+      "engines": {
+        "node": ">=0.8.0"
+      }
+    }
+  },
   "dependencies": {
     "uglify-js": {
       "version": "3.11.5",