diff --git a/Monitoring.md b/Monitoring.md
index f7eb251..2c504bc 100644
--- a/Monitoring.md
+++ b/Monitoring.md
@@ -14,6 +14,8 @@ services:
     - type: tmpfs
       target: /tmp/metrics
       read_only: false
+      tmpfs:
+        mode: 0o01777
 
   # nginx
   nginx-exporter: