diff --git a/data/defaults.yaml b/data/defaults.yaml
--- a/data/defaults.yaml
+++ b/data/defaults.yaml
@@ -1669,7 +1669,7 @@
     media_root: "%{hiera('swh::deploy::deposit::media_root_directory')}"
 
 swh::deploy::worker::loader_deposit::config_file: "%{hiera('swh::conf_directory')}/loader_deposit.yml"
-swh::deploy::worker::loader_deposit::concurrency: 2
+swh::deploy::worker::loader_deposit::concurrency: 1
 swh::deploy::worker::loader_deposit::private_tmp: true
 swh::deploy::worker::loader_deposit::loglevel: info
 # deposit_basic_auth_swhworker_{username|password} in private_data
@@ -1682,10 +1682,25 @@
       - swh.deposit.loader.tasks
     task_queues:
       - swh.deposit.loader.tasks.LoadDepositArchiveTsk
+  url: https://deposit.softwareheritage.org
+  auth:
+    username: "%{hiera('deposit_basic_auth_swhworker_username')}"
+    password: "%{hiera('deposit_basic_auth_swhworker_password')}"
+
+swh::deploy::worker::checker_deposit::config_file: "%{hiera('swh::conf_directory')}/checker_deposit.yml"
+swh::deploy::worker::checker_deposit::concurrency: 1
+swh::deploy::worker::checker_deposit::private_tmp: true
+swh::deploy::worker::checker_deposit::loglevel: info
+# deposit_basic_auth_swhworker_{username|password} in private_data
+swh::deploy::worker::checker_deposit::config:
+  storage: "%{alias('swh::remote_service::storage::config::writable')}"
+  extraction_dir: /tmp/swh.checker.deposit/
+  celery:
+    task_broker: "%{alias('swh::deploy::worker::task_broker')}"
+    task_modules:
+      - swh.deposit.loader.tasks
+    task_queues:
       - swh.deposit.loader.tasks.ChecksDepositTsk
-      - swh_loader_deposit
-      - swh_checker_deposit
-  # FIXME: Create a dedicated client subsection
   url: https://deposit.softwareheritage.org
   auth:
     username: "%{hiera('deposit_basic_auth_swhworker_username')}"
diff --git a/data/location/sesi_rocquencourt.yaml b/data/location/sesi_rocquencourt.yaml
--- a/data/location/sesi_rocquencourt.yaml
+++ b/data/location/sesi_rocquencourt.yaml
@@ -21,6 +21,7 @@
 smtp::relayhost: '[smtp.inria.fr]'
 
 swh::deploy::worker::instances:
+  - checker_deposit
   - lister
   - loader_debian
   - loader_deposit
diff --git a/site-modules/profile/manifests/swh/deploy/worker/base_deposit.pp b/site-modules/profile/manifests/swh/deploy/worker/base_deposit.pp
new file mode 100644
--- /dev/null
+++ b/site-modules/profile/manifests/swh/deploy/worker/base_deposit.pp
@@ -0,0 +1,7 @@
+class profile::swh::deploy::worker::base_deposit {
+  $packages = ['python3-swh.deposit.loader']
+
+  package {$packages:
+    ensure => 'present',
+  }
+}
diff --git a/site-modules/profile/manifests/swh/deploy/worker/checker_deposit.pp b/site-modules/profile/manifests/swh/deploy/worker/checker_deposit.pp
new file mode 100644
--- /dev/null
+++ b/site-modules/profile/manifests/swh/deploy/worker/checker_deposit.pp
@@ -0,0 +1,10 @@
+# Deployment for deposit's archive checker
+class profile::swh::deploy::worker::checker_deposit {
+  include ::profile::swh::deploy::worker::checker_deposit
+
+  $private_tmp = lookup('swh::deploy::worker::checker_deposit::private_tmp')
+  ::profile::swh::deploy::worker::instance {'checker_deposit':
+    ensure       => 'present',
+    private_tmp  => $private_tmp,
+  }
+}
diff --git a/site-modules/profile/manifests/swh/deploy/worker/loader_deposit.pp b/site-modules/profile/manifests/swh/deploy/worker/loader_deposit.pp
--- a/site-modules/profile/manifests/swh/deploy/worker/loader_deposit.pp
+++ b/site-modules/profile/manifests/swh/deploy/worker/loader_deposit.pp
@@ -1,18 +1,8 @@
-# Deployment for swh-loader-deposit
+# Deployment for deposit's loader
 class profile::swh::deploy::worker::loader_deposit {
-  $packages = ['python3-swh.deposit.loader']
   $private_tmp = lookup('swh::deploy::worker::loader_deposit::private_tmp')
-
-  package {$packages:
-    ensure => 'present',
-  }
-
-  # This installs the swh-worker@$service_name service
   ::profile::swh::deploy::worker::instance {'loader_deposit':
     ensure       => 'present',
     private_tmp  => $private_tmp,
-    require      => [
-      Package[$packages],
-    ],
   }
 }