diff --git a/magnum_capi_helm/kubernetes.py b/magnum_capi_helm/kubernetes.py
index 7fef371..212890b 100644
--- a/magnum_capi_helm/kubernetes.py
+++ b/magnum_capi_helm/kubernetes.py
@@ -291,7 +291,7 @@ class Cluster(Resource):
 
 
 class OpenstackCluster(Resource):
-    api_version = "infrastructure.cluster.x-k8s.io/v1alpha6"
+    api_version = "infrastructure.cluster.x-k8s.io/v1beta1"
 
 
 class MachineDeployment(Resource):
diff --git a/releasenotes/notes/openstackcluster-v1beta1-2699449249aa0e27.yaml b/releasenotes/notes/openstackcluster-v1beta1-2699449249aa0e27.yaml
new file mode 100644
index 0000000..d34bdbe
--- /dev/null
+++ b/releasenotes/notes/openstackcluster-v1beta1-2699449249aa0e27.yaml
@@ -0,0 +1,6 @@
+---
+upgrade:
+  - |
+    OpenStackCluster API usage has been updated from v1alpha6 to v1beta1.
+    Before upgrading, cluster-api-provider-openstack should be upgraded to at
+    least v0.10.0, as this is the first version that provides v1beta1.