diff --git a/charts/aws-vpc-cni/crds/customresourcedefinition.yaml b/charts/aws-vpc-cni/crds/customresourcedefinition.yaml
index 5eae68ceb6..6425dab157 100644
--- a/charts/aws-vpc-cni/crds/customresourcedefinition.yaml
+++ b/charts/aws-vpc-cni/crds/customresourcedefinition.yaml
@@ -5,7 +5,6 @@ metadata:
 spec:
   scope: Cluster
   group: crd.k8s.amazonaws.com
-  preserveUnknownFields: false
   versions:
     - name: v1alpha1
       served: true
diff --git a/config/master/aws-k8s-cni-cn.yaml b/config/master/aws-k8s-cni-cn.yaml
index 569479e0c0..c7040266e4 100644
--- a/config/master/aws-k8s-cni-cn.yaml
+++ b/config/master/aws-k8s-cni-cn.yaml
@@ -7,7 +7,6 @@ metadata:
 spec:
   scope: Cluster
   group: crd.k8s.amazonaws.com
-  preserveUnknownFields: false
   versions:
     - name: v1alpha1
       served: true
diff --git a/config/master/aws-k8s-cni-us-gov-east-1.yaml b/config/master/aws-k8s-cni-us-gov-east-1.yaml
index 1c0b073d20..ecfcba4ca1 100644
--- a/config/master/aws-k8s-cni-us-gov-east-1.yaml
+++ b/config/master/aws-k8s-cni-us-gov-east-1.yaml
@@ -7,7 +7,6 @@ metadata:
 spec:
   scope: Cluster
   group: crd.k8s.amazonaws.com
-  preserveUnknownFields: false
   versions:
     - name: v1alpha1
       served: true
diff --git a/config/master/aws-k8s-cni-us-gov-west-1.yaml b/config/master/aws-k8s-cni-us-gov-west-1.yaml
index f65bc41e3c..1d1983b5cb 100644
--- a/config/master/aws-k8s-cni-us-gov-west-1.yaml
+++ b/config/master/aws-k8s-cni-us-gov-west-1.yaml
@@ -7,7 +7,6 @@ metadata:
 spec:
   scope: Cluster
   group: crd.k8s.amazonaws.com
-  preserveUnknownFields: false
   versions:
     - name: v1alpha1
       served: true
diff --git a/config/master/aws-k8s-cni.yaml b/config/master/aws-k8s-cni.yaml
index e123d9cd87..388d7f0d86 100644
--- a/config/master/aws-k8s-cni.yaml
+++ b/config/master/aws-k8s-cni.yaml
@@ -7,7 +7,6 @@ metadata:
 spec:
   scope: Cluster
   group: crd.k8s.amazonaws.com
-  preserveUnknownFields: false
   versions:
     - name: v1alpha1
       served: true