diff --git a/values/prometheus/manifests/policies/allow-tempo-egress.yaml b/values/prometheus/manifests/policies/allow-tempo-egress.yaml
new file mode 100644
index 00000000..6ed485e2
--- /dev/null
+++ b/values/prometheus/manifests/policies/allow-tempo-egress.yaml
@@ -0,0 +1,13 @@
+apiVersion: cilium.io/v2
+kind: CiliumNetworkPolicy
+metadata:
+  name: allow-tempo
+  namespace: prometheus
+spec:
+  description: Allow Tempo
+  egress:
+    - toFQDNs:
+        - matchName: tempo.tempo.svc.cluster.local
+  endpointSelector:
+    matchLabels:
+      app.kubernetes.io/name: grafana