diff --git a/slides/reveal.js/package-lock.json b/slides/reveal.js/package-lock.json
index b0bec60..d035794 100644
--- a/slides/reveal.js/package-lock.json
+++ b/slides/reveal.js/package-lock.json
@@ -9611,9 +9611,9 @@
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-      "resolved": "https://registry.npmjs.org/ws/-/ws-6.2.2.tgz",
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+      "resolved": "https://registry.npmjs.org/ws/-/ws-6.2.3.tgz",
+      "integrity": "sha512-jmTjYU0j60B+vHey6TfR3Z7RD61z/hmxBS3VMSGIrroOWXQEneK1zNuotOUrGyBHQj0yrpsLHPWtigEFd13ndA==",
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@@ -17373,9 +17373,9 @@
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-      "resolved": "https://registry.npmjs.org/ws/-/ws-6.2.2.tgz",
-      "integrity": "sha512-zmhltoSR8u1cnDsD43TX59mzoMZsLKqUweyYBAIvTngR3shc0W6aOZylZmq/7hqyVxPdi+5Ud2QInblgyE72fw==",
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+      "resolved": "https://registry.npmjs.org/ws/-/ws-6.2.3.tgz",
+      "integrity": "sha512-jmTjYU0j60B+vHey6TfR3Z7RD61z/hmxBS3VMSGIrroOWXQEneK1zNuotOUrGyBHQj0yrpsLHPWtigEFd13ndA==",
       "dev": true,
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         "async-limiter": "~1.0.0"