diff --git a/13-10-mongo-simple.yaml b/13-10-mongo-simple.yaml
index 0e50b65..aedd59c 100644
--- a/13-10-mongo-simple.yaml
+++ b/13-10-mongo-simple.yaml
@@ -1,14 +1,17 @@
-apiVersion: apps/v1beta1
+apiVersion: apps/v1
 kind: StatefulSet
 metadata:
   name: mongo
 spec:
   serviceName: "mongo"
   replicas: 3
+  selector:
+   matchLabels:
+      name: mongo
   template:
     metadata:
       labels:
-        app: mongo
+        name: mongo
     spec:
       containers:
       - name: mongodb
diff --git a/13-13-mongo.yaml b/13-13-mongo.yaml
index 368b1a6..8cefb93 100644
--- a/13-13-mongo.yaml
+++ b/13-13-mongo.yaml
@@ -1,14 +1,17 @@
-apiVersion: apps/v1beta1
+apiVersion: apps/v1
 kind: StatefulSet
 metadata:
   name: mongo
 spec:
   serviceName: "mongo"
   replicas: 3
+  selector:
+    matchLabels:
+      name: mongo
   template:
     metadata:
       labels:
-        app: mongo
+        name: mongo
     spec:
       containers:
       - name: mongodb
diff --git a/13-5-nfs-volume-claim.yaml b/13-5-nfs-volume-claim.yaml
index 5821301..9b335cb 100644
--- a/13-5-nfs-volume-claim.yaml
+++ b/13-5-nfs-volume-claim.yaml
@@ -8,7 +8,7 @@ spec:
   - ReadWriteMany
   resources:
     requests:
-      storage: 0.5Gi
+      storage: 1Gi
   selector:
     matchLabels:
       volume: my-volume
diff --git a/13-6-mysql-replicaset.yaml b/13-6-mysql-replicaset.yaml
index 58d2162..041ef76 100644
--- a/13-6-mysql-replicaset.yaml
+++ b/13-6-mysql-replicaset.yaml
@@ -21,7 +21,7 @@ spec:
         resources:
           requests:
             cpu: 1
-            memory: 1Gi
+            memory: 2Gi
         env:
         # Environment variables are not a best practice for security,
         # but we're using them here for brevity in the example.