diff --git a/manifests/postgres/postgres.yaml b/manifests/postgres/postgres.yaml
index c044d08..7b89e71 100644
--- a/manifests/postgres/postgres.yaml
+++ b/manifests/postgres/postgres.yaml
@@ -37,4 +37,4 @@ spec:
   affinity:
     enablePodAntiAffinity: true
     topologyKey: topology.kubernetes.io/zone # default: kubernetes.io/hostname
-    podAntiAffinityType: preferred
+    podAntiAffinityType: required