diff --git a/src/lib/PubSub/CloudEvent.php b/src/lib/PubSub/CloudEvent.php
index 60b6533..d02da71 100644
--- a/src/lib/PubSub/CloudEvent.php
+++ b/src/lib/PubSub/CloudEvent.php
@@ -8,12 +8,15 @@
 use Exception;
 use InvalidArgumentException;
 use JetBrains\PhpStorm\ArrayShape;
+use JetBrains\PhpStorm\Deprecated;
 use LogicException;
 
 /**
  * Class CloudEvent
  * @package Dapr\PubSub
+ * @deprecated 1.3.0 Replaced by cloudevents/sdk-php
  */
+#[Deprecated(since: '1.3.0', replacement: \CloudEvents\V1\CloudEvent::class)]
 class CloudEvent implements IDeserialize
 {
     /**
diff --git a/src/lib/PubSub/Topic.php b/src/lib/PubSub/Topic.php
index eb325b3..84f7bf6 100644
--- a/src/lib/PubSub/Topic.php
+++ b/src/lib/PubSub/Topic.php
@@ -7,6 +7,8 @@
 use Dapr\exceptions\DaprException;
 use JetBrains\PhpStorm\Deprecated;
 use Psr\Log\LoggerInterface;
+use CloudEvents\V1\CloudEventInterface;
+use CloudEvents\Serializers\JsonSerializer;
 
 /**
  * Class Topic
@@ -25,7 +27,7 @@ public function __construct(
     /**
      * Publish an event to the topic
      *
-     * @param CloudEvent|mixed $event The event to publish
+     * @param CloudEventInterface|CloudEvent|mixed $event The event to publish
      * @param array|null $metadata Additional metadata to pass to the component
      * @param string $content_type The header to include in the publish request. Ignored when $event is a CloudEvent
      *
@@ -38,13 +40,17 @@ public function publish(mixed $event, ?array $metadata = null, string $content_t
         } elseif ($this->client instanceof NewClient) {
             $this->client->logger->debug('Sending {event} to {topic}', ['event' => $event, 'topic' => $this->topic]);
         }
-        if ($event instanceof CloudEvent) {
+        if ($event instanceof CloudEvent || $event instanceof CloudEventInterface) {
             $content_type = 'application/cloudevents+json';
             $this->client->extra_headers = [
                 'Content-Type: application/cloudevents+json',
             ];
 
-            $event = $event->to_array();
+            if ($event instanceof CloudEvent) {
+                $event = $event->to_array();
+            } elseif ($event instanceof CloudEventInterface) {
+                $event = json_decode(JsonSerializer::create()->serializeStructured($event), true);
+            }
         }
 
         if ($this->client instanceof DaprClient) {