diff --git a/site-cookbooks/kosmos_prometheus/recipes/alertmanager.rb b/site-cookbooks/kosmos_prometheus/recipes/alertmanager.rb
index 1984732..4ed73ca 100644
--- a/site-cookbooks/kosmos_prometheus/recipes/alertmanager.rb
+++ b/site-cookbooks/kosmos_prometheus/recipes/alertmanager.rb
@@ -11,6 +11,13 @@ prometheus_alertmanager_install "alertmanager" do
 end
 
 prometheus_alertmanager_config "alertmanager"
+
+execute "restart alertmanager config" do
+  command "systemctl restart alertmanager.service"
+  action :nothing
+  subscribes :run, "template[/opt/prometheus/alertmanager.yml]", :delayed
+end
+
 prometheus_alertmanager_service "alertmanager"
 
 firewall_rule "prometheus alertmanager" do
diff --git a/site-cookbooks/kosmos_prometheus/recipes/server.rb b/site-cookbooks/kosmos_prometheus/recipes/server.rb
index 16867c2..3256944 100644
--- a/site-cookbooks/kosmos_prometheus/recipes/server.rb
+++ b/site-cookbooks/kosmos_prometheus/recipes/server.rb
@@ -23,6 +23,14 @@ prometheus_job "node" do
   target "localhost:9100"
 end
 
+with_run_context :root do
+  execute "reload prometheus config" do
+    command "systemctl reload prometheus.service"
+    action :nothing
+    subscribes :run, "template[/opt/prometheus/prometheus.yml]", :delayed
+  end
+end
+
 prometheus_service "prometheus" do
   cli_options({
     "config.file" => "/opt/prometheus/prometheus.yml",