diff --git a/docs/eventing-api.md b/docs/eventing-api.md
index 4c84a143474..00d8f8f37cd 100644
--- a/docs/eventing-api.md
+++ b/docs/eventing-api.md
@@ -76,7 +76,7 @@ Channelable ObjectReferences and access their subscription and address data.  Th
 <td>
 <code>metadata</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#objectmeta-v1-meta">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#objectmeta-v1-meta">
 Kubernetes meta/v1.ObjectMeta
 </a>
 </em>
@@ -471,7 +471,7 @@ SubscribableType ObjectReferences and access the Subscription data.  This is not
 <td>
 <code>metadata</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#objectmeta-v1-meta">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#objectmeta-v1-meta">
 Kubernetes meta/v1.ObjectMeta
 </a>
 </em>
@@ -724,7 +724,7 @@ int64
 <td>
 <code>ready</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#conditionstatus-v1-core">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#conditionstatus-v1-core">
 Kubernetes core/v1.ConditionStatus
 </a>
 </em>
@@ -846,7 +846,7 @@ access the Placeable data.  This is not a real resource.</p>
 <td>
 <code>metadata</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#objectmeta-v1-meta">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#objectmeta-v1-meta">
 Kubernetes meta/v1.ObjectMeta
 </a>
 </em>
@@ -958,7 +958,7 @@ Channelable ObjectReferences and access their subscription and address data.  Th
 <td>
 <code>metadata</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#objectmeta-v1-meta">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#objectmeta-v1-meta">
 Kubernetes meta/v1.ObjectMeta
 </a>
 </em>
@@ -1299,7 +1299,7 @@ SubscribableType ObjectReferences and access the Subscription data.  This is not
 <td>
 <code>metadata</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#objectmeta-v1-meta">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#objectmeta-v1-meta">
 Kubernetes meta/v1.ObjectMeta
 </a>
 </em>
@@ -1552,7 +1552,7 @@ int64
 <td>
 <code>ready</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#conditionstatus-v1-core">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#conditionstatus-v1-core">
 Kubernetes core/v1.ConditionStatus
 </a>
 </em>
@@ -1624,7 +1624,7 @@ string
 <td>
 <code>metadata</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#objectmeta-v1-meta">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#objectmeta-v1-meta">
 Kubernetes meta/v1.ObjectMeta
 </a>
 </em>
@@ -1736,7 +1736,7 @@ string
 <td>
 <code>metadata</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#objectmeta-v1-meta">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#objectmeta-v1-meta">
 Kubernetes meta/v1.ObjectMeta
 </a>
 </em>
@@ -2358,7 +2358,7 @@ string
 <td>
 <code>metadata</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#objectmeta-v1-meta">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#objectmeta-v1-meta">
 Kubernetes meta/v1.ObjectMeta
 </a>
 </em>
@@ -2640,7 +2640,7 @@ series through Channels and Subscriptions.</p>
 <td>
 <code>metadata</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#objectmeta-v1-meta">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#objectmeta-v1-meta">
 Kubernetes meta/v1.ObjectMeta
 </a>
 </em>
@@ -2878,7 +2878,7 @@ ParallelSubscriptionStatus
 <td>
 <code>channel</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#objectreference-v1-core">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#objectreference-v1-core">
 Kubernetes core/v1.ObjectReference
 </a>
 </em>
@@ -3062,7 +3062,7 @@ It generally has the form {channel}.{namespace}.svc.{cluster domain name}</p>
 <td>
 <code>subscription</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#objectreference-v1-core">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#objectreference-v1-core">
 Kubernetes core/v1.ObjectReference
 </a>
 </em>
@@ -3104,7 +3104,7 @@ series through Channels and Subscriptions.</p>
 <td>
 <code>metadata</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#objectmeta-v1-meta">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#objectmeta-v1-meta">
 Kubernetes meta/v1.ObjectMeta
 </a>
 </em>
@@ -3211,7 +3211,7 @@ date.</p>
 <td>
 <code>channel</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#objectreference-v1-core">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#objectreference-v1-core">
 Kubernetes core/v1.ObjectReference
 </a>
 </em>
@@ -3444,7 +3444,7 @@ This includes things like retries, DLS, etc.</p>
 <td>
 <code>subscription</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#objectreference-v1-core">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#objectreference-v1-core">
 Kubernetes core/v1.ObjectReference
 </a>
 </em>
@@ -3516,7 +3516,7 @@ string
 <td>
 <code>metadata</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#objectmeta-v1-meta">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#objectmeta-v1-meta">
 Kubernetes meta/v1.ObjectMeta
 </a>
 </em>
@@ -3627,7 +3627,7 @@ string
 <td>
 <code>metadata</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#objectmeta-v1-meta">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#objectmeta-v1-meta">
 Kubernetes meta/v1.ObjectMeta
 </a>
 </em>
@@ -3723,7 +3723,7 @@ string
 <td>
 <code>metadata</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#objectmeta-v1-meta">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#objectmeta-v1-meta">
 Kubernetes meta/v1.ObjectMeta
 </a>
 </em>
@@ -4308,7 +4308,7 @@ string
 <td>
 <code>metadata</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#objectmeta-v1-meta">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#objectmeta-v1-meta">
 Kubernetes meta/v1.ObjectMeta
 </a>
 </em>
@@ -4461,7 +4461,7 @@ string
 <td>
 <code>metadata</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#objectmeta-v1-meta">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#objectmeta-v1-meta">
 Kubernetes meta/v1.ObjectMeta
 </a>
 </em>
@@ -4508,7 +4508,7 @@ and modifications of the event sent to the sink.</p>
 <td>
 <code>template</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#podtemplatespec-v1-core">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#podtemplatespec-v1-core">
 Kubernetes core/v1.PodTemplateSpec
 </a>
 </em>
@@ -4568,7 +4568,7 @@ string
 <td>
 <code>metadata</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#objectmeta-v1-meta">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#objectmeta-v1-meta">
 Kubernetes meta/v1.ObjectMeta
 </a>
 </em>
@@ -4731,7 +4731,7 @@ string
 <td>
 <code>metadata</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#objectmeta-v1-meta">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#objectmeta-v1-meta">
 Kubernetes meta/v1.ObjectMeta
 </a>
 </em>
@@ -4893,7 +4893,7 @@ More info: <a href="https://git.k8s.io/community/contributors/devel/sig-architec
 <td>
 <code>selector</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#labelselector-v1-meta">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#labelselector-v1-meta">
 Kubernetes meta/v1.LabelSelector
 </a>
 </em>
@@ -5084,7 +5084,7 @@ and modifications of the event sent to the sink.</p>
 <td>
 <code>template</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#podtemplatespec-v1-core">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#podtemplatespec-v1-core">
 Kubernetes core/v1.PodTemplateSpec
 </a>
 </em>
@@ -5416,7 +5416,7 @@ string
 <td>
 <code>metadata</code><br/>
 <em>
-<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#objectmeta-v1-meta">
+<a href="https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#objectmeta-v1-meta">
 Kubernetes meta/v1.ObjectMeta
 </a>
 </em>
diff --git a/hack/reference-docs-gen-config.json b/hack/reference-docs-gen-config.json
index b7bd11b764b..54335374064 100644
--- a/hack/reference-docs-gen-config.json
+++ b/hack/reference-docs-gen-config.json
@@ -17,7 +17,7 @@
         },
         {
             "typeMatchPrefix": "^k8s\\.io/(api|apimachinery/pkg/apis)/",
-            "docsURLTemplate": "https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.18/#{{lower .TypeIdentifier}}-{{arrIndex .PackageSegments -1}}-{{arrIndex .PackageSegments -2}}"
+            "docsURLTemplate": "https://kubernetes.io/docs/reference/generated/kubernetes-api/v1.21/#{{lower .TypeIdentifier}}-{{arrIndex .PackageSegments -1}}-{{arrIndex .PackageSegments -2}}"
         },
         {
             "typeMatchPrefix": "^knative\\.dev/pkg/apis/duck",