diff --git a/class/defaults.yml b/class/defaults.yml
index f859100..c0470f7 100644
--- a/class/defaults.yml
+++ b/class/defaults.yml
@@ -15,7 +15,7 @@ parameters:
     charts:
       vault:
         source: https://helm.releases.hashicorp.com
-        version: 0.27.0
+        version: 0.28.1
     namespace: ${_instance}
     name: ${_instance}
     ingress:
diff --git a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-clusterrolebinding.yaml b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-clusterrolebinding.yaml
index 1e3840c..6530f1b 100644
--- a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-clusterrolebinding.yaml
+++ b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-clusterrolebinding.yaml
@@ -5,7 +5,7 @@ metadata:
     app.kubernetes.io/instance: foobar
     app.kubernetes.io/managed-by: Helm
     app.kubernetes.io/name: vault
-    helm.sh/chart: vault-0.27.0
+    helm.sh/chart: vault-0.28.1
   name: foobar-server-binding
 roleRef:
   apiGroup: rbac.authorization.k8s.io
diff --git a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-config-configmap.yaml b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-config-configmap.yaml
index 31e85b2..f13083e 100644
--- a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-config-configmap.yaml
+++ b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-config-configmap.yaml
@@ -1,6 +1,7 @@
 apiVersion: v1
 data:
-  extraconfig-from-values.hcl: |-
+  extraconfig-from-values.hcl: |2-
+
     disable_mlock = true
     ui = true
     listener "tcp" {
@@ -32,6 +33,6 @@ metadata:
     app.kubernetes.io/instance: foobar
     app.kubernetes.io/managed-by: Helm
     app.kubernetes.io/name: vault
-    helm.sh/chart: vault-0.27.0
+    helm.sh/chart: vault-0.28.1
   name: foobar-config
   namespace: vault
diff --git a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-discovery-role.yaml b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-discovery-role.yaml
index e868f75..f7fc689 100644
--- a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-discovery-role.yaml
+++ b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-discovery-role.yaml
@@ -5,7 +5,7 @@ metadata:
     app.kubernetes.io/instance: foobar
     app.kubernetes.io/managed-by: Helm
     app.kubernetes.io/name: vault
-    helm.sh/chart: vault-0.27.0
+    helm.sh/chart: vault-0.28.1
   name: foobar-discovery-role
   namespace: vault
 rules:
diff --git a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-discovery-rolebinding.yaml b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-discovery-rolebinding.yaml
index 91e9602..61cb403 100644
--- a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-discovery-rolebinding.yaml
+++ b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-discovery-rolebinding.yaml
@@ -5,7 +5,7 @@ metadata:
     app.kubernetes.io/instance: foobar
     app.kubernetes.io/managed-by: Helm
     app.kubernetes.io/name: vault
-    helm.sh/chart: vault-0.27.0
+    helm.sh/chart: vault-0.28.1
   name: foobar-discovery-rolebinding
   namespace: vault
 roleRef:
diff --git a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-disruptionbudget.yaml b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-disruptionbudget.yaml
index fc8e98f..1778b92 100644
--- a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-disruptionbudget.yaml
+++ b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-disruptionbudget.yaml
@@ -5,7 +5,7 @@ metadata:
     app.kubernetes.io/instance: foobar
     app.kubernetes.io/managed-by: Helm
     app.kubernetes.io/name: vault
-    helm.sh/chart: vault-0.27.0
+    helm.sh/chart: vault-0.28.1
   name: foobar
   namespace: vault
 spec:
diff --git a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-ha-active-service.yaml b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-ha-active-service.yaml
index b3b3e95..535cb1e 100644
--- a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-ha-active-service.yaml
+++ b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-ha-active-service.yaml
@@ -6,7 +6,7 @@ metadata:
     app.kubernetes.io/instance: foobar
     app.kubernetes.io/managed-by: Helm
     app.kubernetes.io/name: vault
-    helm.sh/chart: vault-0.27.0
+    helm.sh/chart: vault-0.28.1
     vault-active: 'true'
   name: foobar-active
   namespace: vault
diff --git a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-ha-standby-service.yaml b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-ha-standby-service.yaml
index e370bf6..f09bdce 100644
--- a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-ha-standby-service.yaml
+++ b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-ha-standby-service.yaml
@@ -6,7 +6,7 @@ metadata:
     app.kubernetes.io/instance: foobar
     app.kubernetes.io/managed-by: Helm
     app.kubernetes.io/name: vault
-    helm.sh/chart: vault-0.27.0
+    helm.sh/chart: vault-0.28.1
   name: foobar-standby
   namespace: vault
 spec:
diff --git a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-headless-service.yaml b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-headless-service.yaml
index 2454e47..cee9e01 100644
--- a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-headless-service.yaml
+++ b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-headless-service.yaml
@@ -6,7 +6,7 @@ metadata:
     app.kubernetes.io/instance: foobar
     app.kubernetes.io/managed-by: Helm
     app.kubernetes.io/name: vault
-    helm.sh/chart: vault-0.27.0
+    helm.sh/chart: vault-0.28.1
     vault-internal: 'true'
   name: foobar-internal
   namespace: vault
diff --git a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-ingress.yaml b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-ingress.yaml
index 9014194..d39a557 100644
--- a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-ingress.yaml
+++ b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-ingress.yaml
@@ -8,7 +8,7 @@ metadata:
     app.kubernetes.io/instance: foobar
     app.kubernetes.io/managed-by: Helm
     app.kubernetes.io/name: vault
-    helm.sh/chart: vault-0.27.0
+    helm.sh/chart: vault-0.28.1
   name: foobar
   namespace: vault
 spec:
diff --git a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-service.yaml b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-service.yaml
index bc00fcb..8221185 100644
--- a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-service.yaml
+++ b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-service.yaml
@@ -6,7 +6,7 @@ metadata:
     app.kubernetes.io/instance: foobar
     app.kubernetes.io/managed-by: Helm
     app.kubernetes.io/name: vault
-    helm.sh/chart: vault-0.27.0
+    helm.sh/chart: vault-0.28.1
   name: foobar
   namespace: vault
 spec:
diff --git a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-serviceaccount.yaml b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-serviceaccount.yaml
index 0eff41b..63040f0 100644
--- a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-serviceaccount.yaml
+++ b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-serviceaccount.yaml
@@ -5,6 +5,6 @@ metadata:
     app.kubernetes.io/instance: foobar
     app.kubernetes.io/managed-by: Helm
     app.kubernetes.io/name: vault
-    helm.sh/chart: vault-0.27.0
+    helm.sh/chart: vault-0.28.1
   name: foobar
   namespace: vault
diff --git a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-statefulset.yaml b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-statefulset.yaml
index 297e05b..f8e9104 100644
--- a/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-statefulset.yaml
+++ b/tests/golden/defaults/vault/vault/10_vault/vault/templates/server-statefulset.yaml
@@ -18,11 +18,12 @@ spec:
   serviceName: foobar-internal
   template:
     metadata:
+      annotations: null
       labels:
         app.kubernetes.io/instance: foobar
         app.kubernetes.io/name: vault
         component: server
-        helm.sh/chart: vault-0.27.0
+        helm.sh/chart: vault-0.28.1
     spec:
       affinity:
         podAntiAffinity: