diff --git a/values/ncps/manifests/policies/allow-cache-nixos.yaml b/values/ncps/manifests/policies/allow-cache-nixos.yaml
new file mode 100644
index 00000000..90fb8002
--- /dev/null
+++ b/values/ncps/manifests/policies/allow-cache-nixos.yaml
@@ -0,0 +1,12 @@
+apiVersion: cilium.io/v2
+kind: CiliumNetworkPolicy
+metadata:
+  name: allow-cache-nixos
+  namespace: ncps
+spec:
+  egress:
+    - toFQDNs:
+        - matchPattern: 'cache.nixos.org'
+  endpointSelector:
+    matchLabels:
+      app.kubernetes.io/name: nix-cache