diff --git a/presentation-old/package.json b/presentation-old/package.json
index 7e374c0..1fe55b8 100644
--- a/presentation-old/package.json
+++ b/presentation-old/package.json
@@ -82,7 +82,7 @@
   "dependencies": {
     "bulma": "^0.7.4",
     "qs": "^6.6.0",
-    "reveal.js": "^3.7.0",
+    "reveal.js": "^4.0.0",
     "showdown": "^1.9.0"
   }
 }
diff --git a/presentation-old/yarn.lock b/presentation-old/yarn.lock
index b99e2cc..4028a4d 100644
--- a/presentation-old/yarn.lock
+++ b/presentation-old/yarn.lock
@@ -8681,10 +8681,10 @@ ret@~0.1.10:
   resolved "https://registry.yarnpkg.com/ret/-/ret-0.1.15.tgz#b8a4825d5bdb1fc3f6f53c2bc33f81388681c7bc"
   integrity sha512-TTlYpa+OL+vMMNG24xSlQGEJ3B/RzEfUlLct7b5G/ytav+wPrplCpVMFuwzXbkecJrb6IYo1iFb0S9v37754mg==
 
-reveal.js@^3.7.0:
-  version "3.7.0"
-  resolved "https://registry.yarnpkg.com/reveal.js/-/reveal.js-3.7.0.tgz#7afaf72fd963000381289d58f3aa54c0c46b150c"
-  integrity sha512-HTOTNhF5mQAw6fcsptk4oql/DEEUwTG0YHk/LzTNNx0/3IgvOQZqKzvlK/zNpqqKMLlhn1gH9Nvp+FFoc/e5/w==
+reveal.js@^4.0.0:
+  version "4.3.0"
+  resolved "https://registry.yarnpkg.com/reveal.js/-/reveal.js-4.3.0.tgz#6fe91cc84de2e286f039545cb596dbc4d0d52294"
+  integrity sha512-KzZxJjj1gmxVNyplY6g9MiGwtDvZJiYkMvG1Qmaita7vWT/8eoTEK+RuIPLvxDeyxOtTz56u2wrOETVO79qL4A==
 
 rimraf@2.6.3, rimraf@^2.2.8, rimraf@^2.3.4, rimraf@^2.4.3, rimraf@^2.4.4, rimraf@^2.5.3, rimraf@^2.5.4, rimraf@^2.6.1, rimraf@^2.6.2, rimraf@~2.6.2:
   version "2.6.3"