diff --git a/infra/observability/prometheus/prometheus.yml b/infra/observability/prometheus/prometheus.yml
index 4838bc1c..53121566 100644
--- a/infra/observability/prometheus/prometheus.yml
+++ b/infra/observability/prometheus/prometheus.yml
@@ -20,4 +20,10 @@ scrape_configs:
   - job_name: ocr-service
     metrics_path: /metrics
     static_configs:
-      - targets: ['ocr:8000']
+      - targets: ['ocr-service:8000']
+
+  - job_name: ollama
+    metrics_path: /metrics
+    static_configs:
+      # Uses the Docker service name for reliable DNS resolution.
+      - targets: ['ollama:11434']