diff --git a/docker-compose.yml b/docker-compose.yml
index f4be2cf..a9027c0 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -16,11 +16,10 @@ services:
       - ./prometheus/:/etc/prometheus/
       - prometheus_data:/prometheus
     command:
-      - '-config.file=/etc/prometheus/prometheus.yml'
-      - '-storage.local.path=/prometheus'
-      - '-alertmanager.url=http://alertmanager:9093'
-      - '-web.console.libraries=/usr/share/prometheus/console_libraries'
-      - '-web.console.templates=/usr/share/prometheus/consoles'
+      - '--config.file=/etc/prometheus/prometheus.yml'
+      - '--storage.tsdb.path=/prometheus'
+      - '--web.console.libraries=/usr/share/prometheus/console_libraries'
+      - '--web.console.templates=/usr/share/prometheus/consoles'
     ports:
       - 9090:9090
     links:
diff --git a/prometheus/alert.rules b/prometheus/alert.rules
deleted file mode 100644
index 697931b..0000000
--- a/prometheus/alert.rules
+++ /dev/null
@@ -1,9 +0,0 @@
-ALERT service_down
-  IF up == 0
-  
-ALERT high_load
-  IF node_load1 > 0.5
-  ANNOTATIONS {
-      summary = "Instance {{ $labels.instance }} under high load",
-      description = "{{ $labels.instance }} of job {{ $labels.job }} is under high load.",
-  }
\ No newline at end of file
diff --git a/prometheus/alert.rules.yml b/prometheus/alert.rules.yml
new file mode 100644
index 0000000..0cc6836
--- /dev/null
+++ b/prometheus/alert.rules.yml
@@ -0,0 +1,22 @@
+groups:
+- name: example
+  rules:
+
+  # Alert for any instance that is unreachable for >5 minutes.
+  - alert: service_down
+    expr: up == 0
+    for: 2m
+    labels:
+      severity: page
+    annotations:
+      summary: "Instance {{ $labels.instance }} down"
+      description: "{{ $labels.instance }} of job {{ $labels.job }} has been down for more than 5 minutes."
+
+  - alert: high_load
+    expr: node_load1 > 0.5
+    for: 2m
+    labels:
+      severity: page
+    annotations:
+      summary: "Instance {{ $labels.instance }} under high load"
+      description: "{{ $labels.instance }} of job {{ $labels.job }} is under high load."
diff --git a/prometheus/prometheus.yml b/prometheus/prometheus.yml
index 2cf6b58..d6cec37 100644
--- a/prometheus/prometheus.yml
+++ b/prometheus/prometheus.yml
@@ -11,7 +11,7 @@ global:
 
 # Load and evaluate rules in this file every 'evaluation_interval' seconds.
 rule_files:
-  - "alert.rules"
+  - 'alert.rules.yml'
   # - "first.rules"
   # - "second.rules"