diff --git a/charts/certificate-issuer-public/templates/issuer.yaml b/charts/certificate-issuer-public/templates/issuer.yaml
index 79f44f9..4bc338c 100644
--- a/charts/certificate-issuer-public/templates/issuer.yaml
+++ b/charts/certificate-issuer-public/templates/issuer.yaml
@@ -14,3 +14,4 @@
       http01:
         ingress:
           class: {{ .Values.issuer.ingressClass }}
+          serviceType: ClusterIP