diff --git a/stage-openmower/40-openmower/files/opt/stacks/openmower/compose.yaml b/stage-openmower/40-openmower/files/opt/stacks/openmower/compose.yaml
index 6aff5f1..02a78e1 100644
--- a/stage-openmower/40-openmower/files/opt/stacks/openmower/compose.yaml
+++ b/stage-openmower/40-openmower/files/opt/stacks/openmower/compose.yaml
@@ -33,6 +33,7 @@ services:
     image: eclipse-mosquitto:2
     container_name: Mosquitto
     restart: unless-stopped
+    user: mosquitto:mosquitto
     ports:
       - "1883:1883"
       - "9001:9001"