diff --git a/defaults/main.yml b/defaults/main.yml
index 0954acd..c3aba96 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -253,10 +253,10 @@ prometheus_agent:
       alert: uptime
       expr: |
         node_time_seconds{job="node", instance="{{ inventory_hostname }}"} -
-        node_boot_time_seconds{job="node", instance="{{ inventory_hostname }}"} > 3600*24*120
+        node_boot_time_seconds{job="node", instance="{{ inventory_hostname }}"} > 3600*24*30
       for: 5m
       labels:
-        severity: critical
+        severity: warning
       annotations:
         title: '{%raw%}{{ $labels.instance }}: Uptime{%endraw%}'
-        description: "Uptime is more than 120 days, please reboot soon"
+        description: "Uptime is more than 30 days, please reboot soon"