diff --git a/examples/zkapps/04-zkapp-browser-ui/ui/package-lock.json b/examples/zkapps/04-zkapp-browser-ui/ui/package-lock.json
index 559e0320c..62ee757c6 100644
--- a/examples/zkapps/04-zkapp-browser-ui/ui/package-lock.json
+++ b/examples/zkapps/04-zkapp-browser-ui/ui/package-lock.json
@@ -9,6 +9,7 @@
       "version": "0.1.0",
       "dependencies": {
         "coi-serviceworker": "^0.1.7",
+        "comlink": "^4.4.1",
         "next": "14.2.3",
         "o1js": "^1.*",
         "react": "^18",
@@ -262,6 +263,12 @@
       "resolved": "https://registry.npmjs.org/coi-serviceworker/-/coi-serviceworker-0.1.7.tgz",
       "integrity": "sha512-bjSUqEngCPOkErY2vbyWsaIGCNRODYzlNycaREVw5s12/C8SM+RnRUUeX6pZbTtov6C52ZLY/+tvHK+BDxuUuA=="
     },
+    "node_modules/comlink": {
+      "version": "4.4.1",
+      "resolved": "https://registry.npmjs.org/comlink/-/comlink-4.4.1.tgz",
+      "integrity": "sha512-+1dlx0aY5Jo1vHy/tSsIGpSkN4tS9rZSW8FIhG0JH/crs9wwweswIo/POr451r7bZww3hFbPAKnTpimzL/mm4Q==",
+      "license": "Apache-2.0"
+    },
     "node_modules/csstype": {
       "version": "3.1.3",
       "resolved": "https://registry.npmjs.org/csstype/-/csstype-3.1.3.tgz",
diff --git a/examples/zkapps/04-zkapp-browser-ui/ui/package.json b/examples/zkapps/04-zkapp-browser-ui/ui/package.json
index 036c94f7a..132a6dc2d 100644
--- a/examples/zkapps/04-zkapp-browser-ui/ui/package.json
+++ b/examples/zkapps/04-zkapp-browser-ui/ui/package.json
@@ -13,10 +13,11 @@
   },
   "dependencies": {
     "coi-serviceworker": "^0.1.7",
+    "comlink": "^4.4.1",
     "next": "14.2.3",
+    "o1js": "^1.*",
     "react": "^18",
-    "react-dom": "^18",
-    "o1js": "^1.*"
+    "react-dom": "^18"
   },
   "devDependencies": {
     "@types/node": "^20",