diff --git a/ng-meetup/2017/11/upgrading-angularjs-apps/package-lock.json b/ng-meetup/2017/11/upgrading-angularjs-apps/package-lock.json
index 85aef07..f6e6cc4 100644
--- a/ng-meetup/2017/11/upgrading-angularjs-apps/package-lock.json
+++ b/ng-meetup/2017/11/upgrading-angularjs-apps/package-lock.json
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+          "integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
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+          "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.3.2.tgz",
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-      "integrity": "sha1-7J+CA1btme9tNX8HVtZIcXvdQoE=",
+    "socket.io-parser": {
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+      "resolved": "https://registry.npmjs.org/socket.io-parser/-/socket.io-parser-3.4.1.tgz",
+      "integrity": "sha512-11hMgzL+WCLWf1uFtHSNvliI++tcRUWdoeYuwIl+Axvwy9z2gQM+7nJyN3STj1tLj5JyIUH8/gpDGxzAlDdi0A==",
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@@ -3496,31 +3463,25 @@
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-          "integrity": "sha1-QMRT5n5uE8kB3ewxeviYbNqe/4w=",
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+            "ms": "^2.1.1"
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+          "resolved": "https://registry.npmjs.org/isarray/-/isarray-2.0.1.tgz",
+          "integrity": "sha1-o32U7ZzaLVmGXJ92/llu4fM4dB4="
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-          "integrity": "sha1-riXPJRKziFodldfwN4aNhDESR2U="
+          "version": "2.1.3",
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@@ -3768,11 +3729,6 @@
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@@ -3919,23 +3875,14 @@
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-      "integrity": "sha1-OS2LotDxw00e4tYw8V0O+2jhBIo="
+      "version": "7.4.2",
+      "resolved": "https://registry.npmjs.org/ws/-/ws-7.4.2.tgz",
+      "integrity": "sha512-T4tewALS3+qsrpGI/8dqNMLIVdq/g/85U98HPMa6F0m6xTbvhXU6RCQLqPH3+SlomNV/LdY6RXEbBpMH6EOJnA=="
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-      "integrity": "sha1-GFqIjATspGw+QHDZn3tJ3jUomS0="
+      "version": "1.5.5",
+      "resolved": "https://registry.npmjs.org/xmlhttprequest-ssl/-/xmlhttprequest-ssl-1.5.5.tgz",
+      "integrity": "sha1-wodrBhaKrcQOV9l+gRkayPQ5iz4="
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diff --git a/ng-meetup/2017/11/upgrading-angularjs-apps/package.json b/ng-meetup/2017/11/upgrading-angularjs-apps/package.json
index 1f866ea..29e57c5 100644
--- a/ng-meetup/2017/11/upgrading-angularjs-apps/package.json
+++ b/ng-meetup/2017/11/upgrading-angularjs-apps/package.json
@@ -25,7 +25,7 @@
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     "grunt-cli": "~1.2.0",
     "mustache": "~2.2.1",
-    "socket.io": "^1.4.8"
+    "socket.io": "^2.4.0"
   },
   "devDependencies": {
     "grunt": "~1.0.1",