diff --git a/pkg/crd/markers/zz_generated.markerhelp.go b/pkg/crd/markers/zz_generated.markerhelp.go
index 3acf3c983..61dc86cc1 100644
--- a/pkg/crd/markers/zz_generated.markerhelp.go
+++ b/pkg/crd/markers/zz_generated.markerhelp.go
@@ -198,7 +198,7 @@ func (Minimum) Help() *markers.DefinitionHelp {
 	return &markers.DefinitionHelp{
 		Category: "CRD validation",
 		DetailedHelp: markers.DetailedHelp{
-			Summary: "specifies the minimum numeric value that this field can have.",
+			Summary: "specifies the minimum numeric value that this field can have. Negative integers are supported.",
 			Details: "",
 		},
 		FieldHelp: map[string]markers.DetailedHelp{},
diff --git a/pkg/webhook/parser.go b/pkg/webhook/parser.go
index dda54dc93..d9cfd6321 100644
--- a/pkg/webhook/parser.go
+++ b/pkg/webhook/parser.go
@@ -244,10 +244,6 @@ func (c Config) clientConfig() admissionregv1.WebhookClientConfig {
 			Namespace: "system",
 			Path:      &path,
 		},
-		// OpenAPI marks the field as required before 1.13 because of a bug that got fixed in
-		// https://github.com/kubernetes/api/commit/e7d9121e9ffd63cea0288b36a82bcc87b073bd1b
-		// Put "\n" as an placeholder as a workaround til 1.13+ is almost everywhere.
-		CABundle: []byte("\n"),
 	}
 }
 
diff --git a/pkg/webhook/testdata/manifests.v1beta1.yaml b/pkg/webhook/testdata/manifests.v1beta1.yaml
index b8603f65f..e6ea5f758 100644
--- a/pkg/webhook/testdata/manifests.v1beta1.yaml
+++ b/pkg/webhook/testdata/manifests.v1beta1.yaml
@@ -10,7 +10,6 @@ webhooks:
   - v1
   - v1beta1
   clientConfig:
-    caBundle: Cg==
     service:
       name: webhook-service
       namespace: system
@@ -38,7 +37,6 @@ metadata:
   name: validating-webhook-configuration
 webhooks:
 - clientConfig:
-    caBundle: Cg==
     service:
       name: webhook-service
       namespace: system
diff --git a/pkg/webhook/testdata/manifests.yaml b/pkg/webhook/testdata/manifests.yaml
index 6f6f92b59..285be0243 100644
--- a/pkg/webhook/testdata/manifests.yaml
+++ b/pkg/webhook/testdata/manifests.yaml
@@ -10,7 +10,6 @@ webhooks:
   - v1
   - v1beta1
   clientConfig:
-    caBundle: Cg==
     service:
       name: webhook-service
       namespace: system
@@ -41,7 +40,6 @@ webhooks:
   - v1
   - v1beta1
   clientConfig:
-    caBundle: Cg==
     service:
       name: webhook-service
       namespace: system