diff --git a/deploy/cert-manager-webhook-gandi/templates/deployment.yaml b/deploy/cert-manager-webhook-gandi/templates/deployment.yaml
index 073a61b45..678f9c9f5 100644
--- a/deploy/cert-manager-webhook-gandi/templates/deployment.yaml
+++ b/deploy/cert-manager-webhook-gandi/templates/deployment.yaml
@@ -26,6 +26,7 @@ spec:
           image: "{{ .Values.image.repository }}:{{ .Values.image.tag }}"
           imagePullPolicy: {{ .Values.image.pullPolicy }}
           args:
+            - --secure-port={{ .Values.containerport }}
             - --tls-cert-file=/tls/tls.crt
             - --tls-private-key-file=/tls/tls.key
 {{- if .Values.logLevel }}
@@ -36,7 +37,7 @@ spec:
               value: {{ .Values.groupName | quote }}
           ports:
             - name: https
-              containerPort: 443
+              containerPort: {{ .Values.containerport }}
               protocol: TCP
           livenessProbe:
             httpGet:
diff --git a/deploy/cert-manager-webhook-gandi/templates/service.yaml b/deploy/cert-manager-webhook-gandi/templates/service.yaml
index 817c60c4a..ca113aabd 100644
--- a/deploy/cert-manager-webhook-gandi/templates/service.yaml
+++ b/deploy/cert-manager-webhook-gandi/templates/service.yaml
@@ -12,7 +12,7 @@ spec:
   type: {{ .Values.service.type }}
   ports:
     - port: {{ .Values.service.port }}
-      targetPort: https
+      targetPort: {{ .Values.containerport }}
       protocol: TCP
       name: https
   selector:
diff --git a/deploy/cert-manager-webhook-gandi/values.yaml b/deploy/cert-manager-webhook-gandi/values.yaml
index ab255ccb8..0fd2c77d6 100644
--- a/deploy/cert-manager-webhook-gandi/values.yaml
+++ b/deploy/cert-manager-webhook-gandi/values.yaml
@@ -12,6 +12,7 @@ fullnameOverride: ''
 service:
   type: ClusterIP
   port: 443
+containerport: 8443
 features:
   apiPriorityAndFairness: false
 resources: {}