diff --git a/_examples/workers/package-lock.json b/_examples/workers/package-lock.json
index 8f6a33a..f44ddb8 100644
--- a/_examples/workers/package-lock.json
+++ b/_examples/workers/package-lock.json
@@ -168,9 +168,9 @@
       "integrity": "sha1-kl0mAdOaxIXgkc8NpcbmlNw9yv8="
     },
     "reveal.js": {
-      "version": "3.8.0",
-      "resolved": "https://registry.npmjs.org/reveal.js/-/reveal.js-3.8.0.tgz",
-      "integrity": "sha512-MQ+UBXIIL9IyBXhkLZWb/AG5h5/BedmnHXHIEavMBawNLVfAayvTrwNlDjGn4tf/CQ2CTJR8jSyIdu4RpfoLpg=="
+      "version": "4.3.0",
+      "resolved": "https://registry.npmjs.org/reveal.js/-/reveal.js-4.3.0.tgz",
+      "integrity": "sha512-KzZxJjj1gmxVNyplY6g9MiGwtDvZJiYkMvG1Qmaita7vWT/8eoTEK+RuIPLvxDeyxOtTz56u2wrOETVO79qL4A=="
     },
     "union": {
       "version": "0.4.6",
diff --git a/_examples/workers/package.json b/_examples/workers/package.json
index 6a9a506..99cd64e 100644
--- a/_examples/workers/package.json
+++ b/_examples/workers/package.json
@@ -10,6 +10,6 @@
   "license": "MIT",
   "dependencies": {
     "http-server": "^0.11.1",
-    "reveal.js": "^3.8.0"
+    "reveal.js": "^4.3.0"
   }
 }