diff --git a/app/covid-formity/prod.jsonnet b/app/covid-formity/prod.jsonnet
index 18fb845..44f83ef 100644
--- a/app/covid-formity/prod.jsonnet
+++ b/app/covid-formity/prod.jsonnet
@@ -93,7 +93,7 @@
         metadata+: app.metadata("covid-formity") {
             annotations+: {
                 "kubernetes.io/tls-acme": "true",
-                "certmanager.k8s.io/cluster-issuer": "letsencrypt-prod",
+                "cert-manager.io/cluster-issuer": "letsencrypt-prod",
                 "nginx.ingress.kubernetes.io/proxy-body-size": "0",
                 "nginx.ingress.kubernetes.io/configuration-snippet": "
                     location /qr1 { rewrite ^/qr1(.*)$ https://covid.hackerspace.pl$1 redirect; }