diff --git a/sysadmin/grid5000/cassandra/monitoring/docker-compose.yml b/sysadmin/grid5000/cassandra/monitoring/docker-compose.yml
index fcef820..10be6ac 100644
--- a/sysadmin/grid5000/cassandra/monitoring/docker-compose.yml
+++ b/sysadmin/grid5000/cassandra/monitoring/docker-compose.yml
@@ -1,30 +1,33 @@
 volumes:
   grafana-data:
 
 services:
   prometheus:
     build: 
       context: prometheus
       args:
         FEDERATED_PROMETHEUS_IP: ${FEDERATED_PROMETHEUS_IP}
+    command:
+      - '--config.file=/etc/prometheus/prometheus.yml'
+      - '--storage.tsdb.retention.time=365d'
 
     volumes:
       - ${PROMETHEUS_DATA_DIR}:/prometheus
     ports:
       - 9092:9090
     restart: always
 
   grafana:
     image: grafana/grafana
     depends_on:
       - prometheus
     ports:
       - 80:3000
     environment:
       GF_SERVER_ROOT_URL: http://192.168.130.165/
       GF_AUTH_ANONYMOUS_ENABLED: "true"
     volumes:
       - "./grafana/provisioning:/etc/grafana/provisioning:ro"
       - "./grafana/dashboards:/var/lib/grafana/dashboards"
       - "grafana-data:/var/lib/grafana"
     restart: always