diff --git a/relay-js/index.html b/relay-js/index.html
index bedcbf1..8ec8633 100644
--- a/relay-js/index.html
+++ b/relay-js/index.html
@@ -26,15 +26,10 @@
      * Recommended payload is protobuf. Using simple utf-8 string for demo purposes only.
      */
 
-    import {
-        WakuMessage
-    } from 'https://unpkg.com/js-waku@0.28.1/bundle/index.js';
-    import {
-        createPrivacyNode
-    } from 'https://unpkg.com/js-waku@0.28.1/bundle/lib/create_waku.js'
-    import {
-        waitForRemotePeer
-    } from 'https://unpkg.com/js-waku@0.28.1/bundle/lib/wait_for_remote_peer.js'
+    import {utils} from 'https://unpkg.com/js-waku@0.29.0/bundle/index.js';
+    import {createPrivacyNode} from 'https://unpkg.com/js-waku@0.29.0/bundle/lib/create_waku.js'
+    import {waitForRemotePeer} from 'https://unpkg.com/js-waku@0.29.0/bundle/lib/wait_for_remote_peer.js'
+    import {DecoderV0, EncoderV0} from "https://unpkg.com/js-waku@0.29.0/bundle/lib/waku_message/version_0.js";
 
     const statusDiv = document.getElementById('status');
     const messagesDiv = document.getElementById('messages');
@@ -52,6 +47,11 @@
     // for simplicity's sake.
     const contentTopic = '/js-waku-examples/1/chat/utf8';
 
+    // Prepare encoder and decoder, `V0` for clear text messages.
+
+    const encoder = new EncoderV0(contentTopic);
+    const decoder = new DecoderV0(contentTopic);
+
     try {
         statusDiv.innerHTML = '<p>Starting</p>';
 
@@ -59,20 +59,20 @@
         // `default: true` bootstraps by connecting to pre-defined/hardcoded Waku nodes.
         // We are currently working on migrating this method to DNS Discovery.
         //
-        // https://js-waku.wakuconnect.dev/classes/waku.Waku.html#create
+        // https://js.waku.org/functions/lib_create_waku.createPrivacyNode.html
         const waku = await createPrivacyNode({defaultBootstrap: true});
         await waku.start();
 
         // Had a hook to process all incoming messages on a specified content topic.
         //
         // https://js-waku.wakuconnect.dev/classes/waku_relay.WakuRelay.html#addObserver
-        waku.relay.addObserver((wakuMessage) => {
+        waku.relay.addObserver(decoder, (message) => {
 
             // Checks there is a payload on the message.
             // Waku Message is encoded in protobuf, in proto v3 fields are always optional.
             //
             // https://js-waku.wakuconnect.dev/classes/waku_message.WakuMessage.html#payload
-            if (!wakuMessage.payload)
+            if (!message.payload)
                 return;
 
             // Helper method to decode the payload to utf-8. A production dApp should
@@ -80,7 +80,7 @@
             // structure of their choice.
             //
             // https://js-waku.wakuconnect.dev/classes/waku_message.WakuMessage.html#payloadAsUtf8
-            const text = wakuMessage.payloadAsUtf8;
+            const text = utils.bytesToUtf8(message.payload);
             messagesDiv.innerHTML = `<p>${text}</p><br />` + messagesDiv.innerHTML;
         }, [contentTopic]);
 
@@ -96,22 +96,8 @@
         // function that sends the text input over Waku Relay, the gossipsub
         // protocol.
         sendButton.onclick = async () => {
-            const text = textInput.value;
-
-            // Helper functions are available to create a Waku Message.
-            // These functions also provide native symmetric, asymmetric encryption,
-            // signing and signature verification. Check the `Options` object for details:
-            // https://js-waku.wakuconnect.dev/interfaces/waku_message.Options.html
-            //
-            // `WakuMessage.fromBytes` should be preferred for a production dApp to
-            // serialize a data structure.
-            //
-            // https://js-waku.wakuconnect.dev/classes/waku_message.WakuMessage.html#fromUtf8String
-            const wakuMessage = await WakuMessage.fromUtf8String(text, contentTopic);
-            // Once the message is constructed, send it over Waku Relay.
-            //
-            // https://js-waku.wakuconnect.dev/classes/waku_relay.WakuRelay.html#send
-            await waku.relay.send(wakuMessage);
+            const payload = utils.utf8ToBytes(textInput.value)
+            await waku.relay.send(encoder, {payload});
             console.log('Message sent!');
 
             // Reset the text input.