diff --git a/manifests/setup/prometheus-operator-0alertmanagerCustomResourceDefinition.yaml b/manifests/setup/prometheus-operator-0alertmanagerCustomResourceDefinition.yaml
index a8c04926cafcc9b0578c63ab51ddd7fcc9be67b8..e04eddbbb5321071bdb7fd164f874feeba8d4ecf 100644
--- a/manifests/setup/prometheus-operator-0alertmanagerCustomResourceDefinition.yaml
+++ b/manifests/setup/prometheus-operator-0alertmanagerCustomResourceDefinition.yaml
@@ -12,7 +12,6 @@ spec:
     listKind: AlertmanagerList
     plural: alertmanagers
     singular: alertmanager
-  preserveUnknownFields: false
   scope: Namespaced
   versions:
   - additionalPrinterColumns:
diff --git a/manifests/setup/prometheus-operator-0podmonitorCustomResourceDefinition.yaml b/manifests/setup/prometheus-operator-0podmonitorCustomResourceDefinition.yaml
index 8b8daa7de288fbe0fc356265734de7d6dc59706f..01bcac01b0482910d97b771f18c13aabc2971c12 100644
--- a/manifests/setup/prometheus-operator-0podmonitorCustomResourceDefinition.yaml
+++ b/manifests/setup/prometheus-operator-0podmonitorCustomResourceDefinition.yaml
@@ -12,7 +12,6 @@ spec:
     listKind: PodMonitorList
     plural: podmonitors
     singular: podmonitor
-  preserveUnknownFields: false
   scope: Namespaced
   versions:
   - name: v1
diff --git a/manifests/setup/prometheus-operator-0prometheusCustomResourceDefinition.yaml b/manifests/setup/prometheus-operator-0prometheusCustomResourceDefinition.yaml
index 37d4d56030ca6bd171591257561a22de74d53dc1..d391b6b4e2f763d6edb1b7b1d9f198f71b38ec10 100644
--- a/manifests/setup/prometheus-operator-0prometheusCustomResourceDefinition.yaml
+++ b/manifests/setup/prometheus-operator-0prometheusCustomResourceDefinition.yaml
@@ -12,7 +12,6 @@ spec:
     listKind: PrometheusList
     plural: prometheuses
     singular: prometheus
-  preserveUnknownFields: false
   scope: Namespaced
   versions:
   - additionalPrinterColumns:
diff --git a/manifests/setup/prometheus-operator-0prometheusruleCustomResourceDefinition.yaml b/manifests/setup/prometheus-operator-0prometheusruleCustomResourceDefinition.yaml
index 5c690605cc84bc1a4e008d33b0f3308204523291..6c8404f6d12032ad30caff8a9d12ba01dcb69c2d 100644
--- a/manifests/setup/prometheus-operator-0prometheusruleCustomResourceDefinition.yaml
+++ b/manifests/setup/prometheus-operator-0prometheusruleCustomResourceDefinition.yaml
@@ -12,7 +12,6 @@ spec:
     listKind: PrometheusRuleList
     plural: prometheusrules
     singular: prometheusrule
-  preserveUnknownFields: false
   scope: Namespaced
   versions:
   - name: v1
diff --git a/manifests/setup/prometheus-operator-0servicemonitorCustomResourceDefinition.yaml b/manifests/setup/prometheus-operator-0servicemonitorCustomResourceDefinition.yaml
index 69bc9654e56c105227a45a5f6b5af107231cf6ef..e9909dbfee715c8b46c42e295e4c96200867321e 100644
--- a/manifests/setup/prometheus-operator-0servicemonitorCustomResourceDefinition.yaml
+++ b/manifests/setup/prometheus-operator-0servicemonitorCustomResourceDefinition.yaml
@@ -12,7 +12,6 @@ spec:
     listKind: ServiceMonitorList
     plural: servicemonitors
     singular: servicemonitor
-  preserveUnknownFields: false
   scope: Namespaced
   versions:
   - name: v1
diff --git a/manifests/setup/prometheus-operator-0thanosrulerCustomResourceDefinition.yaml b/manifests/setup/prometheus-operator-0thanosrulerCustomResourceDefinition.yaml
index a7cff171fe9da35ec99c8110375c15b11fda46c0..3396c98885617a43fd3477dd1f1c67c4d537a32b 100644
--- a/manifests/setup/prometheus-operator-0thanosrulerCustomResourceDefinition.yaml
+++ b/manifests/setup/prometheus-operator-0thanosrulerCustomResourceDefinition.yaml
@@ -12,7 +12,6 @@ spec:
     listKind: ThanosRulerList
     plural: thanosrulers
     singular: thanosruler
-  preserveUnknownFields: false
   scope: Namespaced
   versions:
   - name: v1