diff --git a/site-modules/profile/manifests/swh/deploy/vault.pp b/site-modules/profile/manifests/swh/deploy/vault.pp
index 4e8f0a1f..5abab2b6 100644
--- a/site-modules/profile/manifests/swh/deploy/vault.pp
+++ b/site-modules/profile/manifests/swh/deploy/vault.pp
@@ -1,29 +1,28 @@
 # Deployment of the swh.vault.api server
 
 class profile::swh::deploy::vault {
   include ::profile::swh::deploy::base_vault
 
   Package['python3-swh.vault'] ~> Service['gunicorn-swh-vault']
 
   $user = lookup('swh::deploy::vault::user')
   $cache_directory = lookup('swh::deploy::vault::cache')
 
   file {$cache_directory:
     ensure => directory,
     owner  => $user,
     group  => 'swhdev',
     mode   => '0755',
   }
 
   ::profile::swh::deploy::rpc_server {'vault':
     executable => 'swh.vault.api.server:make_app_from_configfile()',
-    worker     => 'async',
   }
 
   # Install vault end-to-end checks
   @@profile::icinga2::objects::e2e_checks_vault {"End-to-end Vault Test(s) in ${environment}":
     server_vault  => lookup('swh::deploy::vault::e2e::storage'),
     server_webapp => lookup('swh::deploy::vault::e2e::webapp'),
     environment   => $environment,
   }
 }