diff --git a/sig-auth/README.md b/sig-auth/README.md
index cc26920d6..d5c430b25 100644
--- a/sig-auth/README.md
+++ b/sig-auth/README.md
@@ -124,10 +124,6 @@ API storage support for storing data encrypted at rest in etcd.
 - **Owners:**
   - [kubernetes/kubernetes/staging/src/k8s.io/apiserver/pkg/server/options/encryptionconfig](https://github.com/kubernetes/kubernetes/blob/master/staging/src/k8s.io/apiserver/pkg/server/options/encryptionconfig/OWNERS)
   - [kubernetes/kubernetes/staging/src/k8s.io/apiserver/pkg/storage/value](https://github.com/kubernetes/kubernetes/blob/master/staging/src/k8s.io/apiserver/pkg/storage/value/OWNERS)
-### hierarchical-namespace-controller
-Controller to manage hierarchical namespaces
-- **Owners:**
-  - [kubernetes-sigs/hierarchical-namespaces](https://github.com/kubernetes-sigs/hierarchical-namespaces/blob/master/OWNERS)
 ### node-identity-and-isolation
 Node identity management (co-owned with sig-lifecycle), and authorization restrictions for isolating workloads on separate nodes (co-owned with sig-node).
 - **Owners:**
diff --git a/sigs.yaml b/sigs.yaml
index 063abc8d6..18f46884a 100644
--- a/sigs.yaml
+++ b/sigs.yaml
@@ -581,11 +581,6 @@ sigs:
     owners:
     - https://raw.githubusercontent.com/kubernetes/kubernetes/master/staging/src/k8s.io/apiserver/pkg/server/options/encryptionconfig/OWNERS
     - https://raw.githubusercontent.com/kubernetes/kubernetes/master/staging/src/k8s.io/apiserver/pkg/storage/value/OWNERS
-  - name: hierarchical-namespace-controller
-    description: |
-      Controller to manage hierarchical namespaces
-    owners:
-    - https://raw.githubusercontent.com/kubernetes-sigs/hierarchical-namespaces/master/OWNERS
   - name: node-identity-and-isolation
     description: |
       Node identity management (co-owned with sig-lifecycle), and authorization restrictions for isolating workloads on separate nodes (co-owned with sig-node).