diff --git a/tests/e2e/Services/Functions/FunctionsCustomServerTest.php b/tests/e2e/Services/Functions/FunctionsCustomServerTest.php
index 9c08610de6..c9b277a3cd 100644
--- a/tests/e2e/Services/Functions/FunctionsCustomServerTest.php
+++ b/tests/e2e/Services/Functions/FunctionsCustomServerTest.php
@@ -1140,7 +1140,7 @@ class FunctionsCustomServerTest extends Scope
         $this->assertEquals(201, $deployment['headers']['status-code']);
 
         // Allow build step to run
-        sleep(20);
+        sleep(30);
 
         $execution = $this->client->call(Client::METHOD_POST, '/functions/'.$functionId.'/executions', array_merge([
             'content-type' => 'application/json',