diff --git a/manifests/postgres/postgres.yaml b/manifests/postgres/postgres.yaml
index 0b5d36a..c044d08 100644
--- a/manifests/postgres/postgres.yaml
+++ b/manifests/postgres/postgres.yaml
@@ -34,3 +34,7 @@ spec:
   replicationSlots:
     highAvailability:
       enabled: true
+  affinity:
+    enablePodAntiAffinity: true
+    topologyKey: topology.kubernetes.io/zone # default: kubernetes.io/hostname
+    podAntiAffinityType: preferred