diff --git a/tests/e2e/Services/Realtime/RealtimeCustomClientTest.php b/tests/e2e/Services/Realtime/RealtimeCustomClientTest.php
index 858fec7d29..4f880338a4 100644
--- a/tests/e2e/Services/Realtime/RealtimeCustomClientTest.php
+++ b/tests/e2e/Services/Realtime/RealtimeCustomClientTest.php
@@ -1294,7 +1294,7 @@ class RealtimeCustomClientTest extends Scope
         $this->assertNotEmpty($deployment['body']['$id']);
 
         // Wait for deployment to be built.
-        sleep(5);
+        sleep(10);
 
         $response = $this->client->call(Client::METHOD_PATCH, '/functions/' . $functionId . '/deployments/' . $deploymentId, array_merge([
             'content-type' => 'application/json',