diff --git a/prometheus/data/etc/prometheus.yml b/prometheus/data/etc/prometheus.yml
new file mode 100644
index 0000000..93c24da
--- /dev/null
+++ b/prometheus/data/etc/prometheus.yml
@@ -0,0 +1,19 @@
+global:
+  scrape_interval:     15s # By default, scrape targets every 15 seconds.
+
+  # Attach these labels to any time series or alerts when communicating with
+  # external systems (federation, remote storage, Alertmanager).
+  external_labels:
+    monitor: 'codelab-monitor'
+
+# A scrape configuration containing exactly one endpoint to scrape:
+# Here it's Prometheus itself.
+scrape_configs:
+  # The job name is added as a label `job=<job_name>` to any timeseries scraped from this config.
+  - job_name: 'prometheus'
+
+    # Override the global default and scrape targets from this job every 5 seconds.
+    scrape_interval: 5s
+
+    static_configs:
+      - targets: ['localhost:9090']
diff --git a/prometheus/data/prometheus.yml b/prometheus/data/prometheus.yml
deleted file mode 100644
index 1997f99..0000000
Binary files a/prometheus/data/prometheus.yml and /dev/null differ
diff --git a/prometheus/data/var/.gitkeep b/prometheus/data/var/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/prometheus/docker-compose.yml b/prometheus/docker-compose.yml
index 2b65090..b48024e 100644
--- a/prometheus/docker-compose.yml
+++ b/prometheus/docker-compose.yml
@@ -1,9 +1,15 @@
-version: "3.7"
+version: "3.8"
 services:
   prometheus:
-    image: prom/prometheus
+    image: prom/prometheus:v2.31.1
+    command:
+      - '--config.file=/etc/prometheus/prometheus.yml'
+      - '--storage.tsdb.path=/var/lib/prometheus'
+      - '--web.console.libraries=/usr/share/prometheus/console_libraries'
+      - '--web.console.templates=/usr/share/prometheus/consoles'
     ports:
       - "9090:9090"
     volumes:
-      - ./data:/etc/prometheus
+      - ./data/etc:/etc/prometheus
+      - ./data/var:/var/lib/prometheus
     restart: unless-stopped