diff --git a/manifests/keycloak/values.yaml b/manifests/keycloak/values.yaml
index 097d932..7c5a2d2 100644
--- a/manifests/keycloak/values.yaml
+++ b/manifests/keycloak/values.yaml
@@ -52,6 +52,11 @@ postgresql:
     persistence:
       enabled: true
       size: 8Gi
+    # Match the live StatefulSet's immutable PVC retention policy
+    persistentVolumeClaimRetentionPolicy:
+      enabled: true
+      whenDeleted: Retain
+      whenScaled: Retain
 
 customReadinessProbe:
   httpGet: