diff --git a/helmfile.d/cert-manager.yaml.gotmpl b/helmfile.d/cert-manager.yaml.gotmpl
index ef757def..0c839c4f 100644
--- a/helmfile.d/cert-manager.yaml.gotmpl
+++ b/helmfile.d/cert-manager.yaml.gotmpl
@@ -3,7 +3,8 @@ bases:
 
 repositories:
   - name: cert-manager
-    url: 'https://charts.jetstack.io'
+    oci: true
+    url: 'quay.io/jetstack/charts'
 
 commonLabels:
   tier: system
@@ -12,7 +13,7 @@ releases:
 - name: cert-manager
   namespace: cert-manager
   chart: cert-manager/cert-manager
-  version: 1.12.13
+  version: v1.12.13
   condition: cert_manager.enabled
   values:
   - ../values/cert-manager/values/cert-manager.yaml.gotmpl