diff --git a/docker/swarm/stack/monitoring/prometheus/init.yml b/docker/swarm/stack/monitoring/prometheus/init.yml
index 924c08c..b364259 100644
--- a/docker/swarm/stack/monitoring/prometheus/init.yml
+++ b/docker/swarm/stack/monitoring/prometheus/init.yml
@@ -9,6 +9,7 @@
     prometheus_storage_heap_size: 3221225472
     prometheus_storage_num_fingerprint_mutexes: 4096
     prometheus_cors_origin: '.*'
+    prometheus_alert_resend_delay: "2m"
   docker:
     client:
       stack:
@@ -43,6 +44,7 @@
                 PROMETHEUS_BIND_ADDRESS: ${prometheus:server:bind:address}
                 PROMETHEUS_STORAGE_LOCAL_RETENTION: ${prometheus:server:storage:local:retention}
                 PROMETHEUS_EXTERNAL_URL: "${_param:prometheus_external_proto}://${_param:prometheus_external_url}:15010"
+                PROMETHEUS_ALERT_RESEND_DELAY: "${_param:prometheus_alert_resend_delay}"
                 # Backward compatibility for Prometheus 1.7
                 PROMETHEUS_STORAGE_LOCAL_ENGINE: ${_param:prometheus_storage_local_engine}
                 PROMETHEUS_STORAGE_LOCAL_TARGET_HEAP_SIZE: ${_param:prometheus_storage_heap_size}
diff --git a/docker/swarm/stack/monitoring/sf_notifier.yml b/docker/swarm/stack/monitoring/sf_notifier.yml
index ff32a0b..e2e5435 100644
--- a/docker/swarm/stack/monitoring/sf_notifier.yml
+++ b/docker/swarm/stack/monitoring/sf_notifier.yml
@@ -2,7 +2,7 @@
 - system.prometheus.sf_notifier.container
 parameters:
   _param:
-    sf_notifier_workers: 4
+    sf_notifier_workers: 8
     sf_notifier_buffer_size: 32768
     sf_notifier_alert_id_hash_func: sha256
   docker: