diff --git a/charts/postgres-operator/templates/customrresourcedefinition.yaml b/charts/postgres-operator/templates/customrresourcedefinition.yaml
index 59b36c48c..f0a0bcfd2 100644
--- a/charts/postgres-operator/templates/customrresourcedefinition.yaml
+++ b/charts/postgres-operator/templates/customrresourcedefinition.yaml
@@ -498,6 +498,9 @@ spec:
                   type: string
                 pod_management_policy:
                   type: string
+                  enum:
+                    - "ordered_ready"
+                    - "parallel"
                 pod_role_label:
                   type: string
                 pod_service_account_name:
diff --git a/manifests/operatorconfiguration.crd.yaml b/manifests/operatorconfiguration.crd.yaml
index c564fa82f..6726e9db1 100644
--- a/manifests/operatorconfiguration.crd.yaml
+++ b/manifests/operatorconfiguration.crd.yaml
@@ -103,6 +103,9 @@ spec:
                   type: string
                 pod_management_policy:
                   type: string
+                  enum:
+                    - "ordered_ready"
+                    - "parallel"
                 pod_role_label:
                   type: string
                 pod_service_account_name:
diff --git a/pkg/apis/acid.zalan.do/v1/crds.go b/pkg/apis/acid.zalan.do/v1/crds.go
index 5b9f3ecf2..76d842d15 100644
--- a/pkg/apis/acid.zalan.do/v1/crds.go
+++ b/pkg/apis/acid.zalan.do/v1/crds.go
@@ -717,6 +717,14 @@ var OperatorConfigCRDResourceValidation = apiextv1beta1.JSONSchemaProps{
 						},
 						"pod_management_policy": {
 							Type: "string",
+							Enum: []apiextv1beta1.JSON{
+								{
+									Raw: []byte(`"ordered_ready"`),
+								},
+								{
+									Raw: []byte(`"parallel"`),
+								},
+							},
 						},
 						"pod_role_label": {
 							Type: "string",