diff --git a/apps/victoriametrics/base/certificate.patch.yaml b/apps/victoriametrics/base/certificate.patch.yaml
new file mode 100644
index 0000000..d6be454
--- /dev/null
+++ b/apps/victoriametrics/base/certificate.patch.yaml
@@ -0,0 +1,8 @@
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: vm-serving-cert
+spec:
+  dnsNames:
+    - vm-webhook-service.vm.svc
+    - vm-webhook-service.vm.svc.cluster.local
diff --git a/apps/victoriametrics/base/kustomization.yaml b/apps/victoriametrics/base/kustomization.yaml
index dcc3345..feb3b76 100644
--- a/apps/victoriametrics/base/kustomization.yaml
+++ b/apps/victoriametrics/base/kustomization.yaml
@@ -3,6 +3,9 @@ kind: Kustomization
 resources:
   - github.com/VictoriaMetrics/operator/config/base?ref=v0.47.3
 
+patches:
+  - path: certificate.patch.yaml
+
 images:
   - name: manager
     newName: victoriametrics/operator
diff --git a/apps/victoriametrics/overlays/system/certificate.patch.yaml b/apps/victoriametrics/overlays/system/certificate.patch.yaml
new file mode 100644
index 0000000..62e2847
--- /dev/null
+++ b/apps/victoriametrics/overlays/system/certificate.patch.yaml
@@ -0,0 +1,8 @@
+apiVersion: cert-manager.io/v1
+kind: Certificate
+metadata:
+  name: vm-serving-cert
+spec:
+  dnsNames:
+    - vm-webhook-service.victoriametrics-system.svc
+    - vm-webhook-service.victoriametrics-system.svc.cluster.local
diff --git a/apps/victoriametrics/overlays/system/kustomization.yaml b/apps/victoriametrics/overlays/system/kustomization.yaml
index e4d2d45..17aed7d 100644
--- a/apps/victoriametrics/overlays/system/kustomization.yaml
+++ b/apps/victoriametrics/overlays/system/kustomization.yaml
@@ -4,3 +4,6 @@ resources:
   - ../../base
 
 namespace: victoriametrics-system
+
+patches:
+  - path: certificate.patch.yaml