diff --git a/deploy/cert-manager-webhook-hetzner/templates/apiservice.yaml b/deploy/cert-manager-webhook-hetzner/templates/apiservice.yaml
index 6c6a657..ea87db1 100644
--- a/deploy/cert-manager-webhook-hetzner/templates/apiservice.yaml
+++ b/deploy/cert-manager-webhook-hetzner/templates/apiservice.yaml
@@ -8,7 +8,7 @@ metadata:
     release: {{ .Release.Name }}
     heritage: {{ .Release.Service }}
   annotations:
-    cert-manager.io/inject-ca-from: "{{ .Release.Namespace }}/{{ include "cert-manager-webhook-hetzner.servingCertificate" . }}"
+    certmanager.k8s.io/inject-ca-from: "{{ .Release.Namespace }}/{{ include "cert-manager-webhook-hetzner.servingCertificate" . }}"
 spec:
   group: {{ .Values.groupName }}
   groupPriorityMinimum: 1000
diff --git a/deploy/cert-manager-webhook-hetzner/templates/pki.yaml b/deploy/cert-manager-webhook-hetzner/templates/pki.yaml
index d625173..366388e 100644
--- a/deploy/cert-manager-webhook-hetzner/templates/pki.yaml
+++ b/deploy/cert-manager-webhook-hetzner/templates/pki.yaml
@@ -1,7 +1,7 @@
 ---
 # Create a selfsigned Issuer, in order to create a root CA certificate for
 # signing webhook serving certificates
-apiVersion: cert-manager.io/v1alpha2
+apiVersion: cert-manager.io/v1alpha3
 kind: Issuer
 metadata:
   name: {{ include "cert-manager-webhook-hetzner.selfSignedIssuer" . }}
@@ -17,7 +17,7 @@ spec:
 ---
 
 # Generate a CA Certificate used to sign certificates for the webhook
-apiVersion: cert-manager.io/v1alpha2
+apiVersion: cert-manager.io/v1alpha3
 kind: Certificate
 metadata:
   name: {{ include "cert-manager-webhook-hetzner.rootCACertificate" . }}
@@ -38,7 +38,7 @@ spec:
 ---
 
 # Create an Issuer that uses the above generated CA certificate to issue certs
-apiVersion: cert-manager.io/v1alpha2
+apiVersion: cert-manager.io/v1alpha3
 kind: Issuer
 metadata:
   name: {{ include "cert-manager-webhook-hetzner.rootCAIssuer" . }}
@@ -55,7 +55,7 @@ spec:
 ---
 
 # Finally, generate a serving certificate for the webhook to use
-apiVersion: cert-manager.io/v1alpha2
+apiVersion: cert-manager.io/v1alpha3
 kind: Certificate
 metadata:
   name: {{ include "cert-manager-webhook-hetzner.servingCertificate" . }}