diff --git a/.yamllint b/.yamllint
index e99ddcd..eb787cc 100644
--- a/.yamllint
+++ b/.yamllint
@@ -12,5 +12,4 @@ rules:
     ignore:
       - kustomization.yaml
   indentation:
-    ignore:
-      - kustomization.yaml
+    indent-sequences: consistent
diff --git a/cert-manager/issuer.yaml b/cert-manager/issuer.yaml
index c31bee5..451f774 100644
--- a/cert-manager/issuer.yaml
+++ b/cert-manager/issuer.yaml
@@ -10,9 +10,9 @@ spec:
     privateKeySecretRef:
       name: letsencrypt-prod-key
     solvers:
-      - http01:
-        ingress:
-          class: traefik
+    - http01:
+      ingress:
+        class: traefik
 ---
 apiVersion: cert-manager.io/v1
 kind: ClusterIssuer
@@ -25,6 +25,6 @@ spec:
     privateKeySecretRef:
       name: letsencrypt-staging-key
     solvers:
-      - http01:
-        ingress:
-          class: traefik
+    - http01:
+      ingress:
+        class: traefik