diff --git a/13-4-nfs-volume.yaml b/13-4-nfs-volume.yaml
index 0bf70b8..00a66ac 100644
--- a/13-4-nfs-volume.yaml
+++ b/13-4-nfs-volume.yaml
@@ -5,6 +5,9 @@ metadata:
   labels:
     volume: my-volume
 spec:
+  accessModes:
+  - ReadWriteOnce
+  - ReadWriteMany
   capacity:
     storage: 1Gi
   nfs:
diff --git a/13-5-nfs-volume-claim.yaml b/13-5-nfs-volume-claim.yaml
index 739ba67..9b335cb 100644
--- a/13-5-nfs-volume-claim.yaml
+++ b/13-5-nfs-volume-claim.yaml
@@ -3,6 +3,9 @@ apiVersion: v1
 metadata:
   name: database
 spec:
+  accessModes:
+  - ReadWriteOnce
+  - ReadWriteMany
   resources:
     requests:
       storage: 1Gi
diff --git a/13-6-mysql-replicaset.yaml b/13-6-mysql-replicaset.yaml
index fe70d29..041ef76 100644
--- a/13-6-mysql-replicaset.yaml
+++ b/13-6-mysql-replicaset.yaml
@@ -1,4 +1,4 @@
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: ReplicaSet
 metadata:
   name: mysql