diff --git a/kubernetes/deployments/auth.yaml b/kubernetes/deployments/auth.yaml
index 0b83cec..33ed0c4 100644
--- a/kubernetes/deployments/auth.yaml
+++ b/kubernetes/deployments/auth.yaml
@@ -1,8 +1,11 @@
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: auth
 spec:
+  selector:
+    matchLabels:
+      app: auth
   replicas: 1
   template:
     metadata:
diff --git a/kubernetes/deployments/frontend.yaml b/kubernetes/deployments/frontend.yaml
index c319306..719861d 100644
--- a/kubernetes/deployments/frontend.yaml
+++ b/kubernetes/deployments/frontend.yaml
@@ -1,8 +1,11 @@
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: frontend
 spec:
+  selector:
+    matchLabels:
+      app: frontend
   replicas: 1
   template:
     metadata:
@@ -16,7 +19,7 @@ spec:
           lifecycle:
             preStop:
               exec:
-                command: ["/usr/sbin/nginx","-s","quit"]
+                command: ["/usr/sbin/nginx", "-s", "quit"]
           volumeMounts:
             - name: "nginx-frontend-conf"
               mountPath: "/etc/nginx/conf.d"
diff --git a/kubernetes/deployments/hello-canary.yaml b/kubernetes/deployments/hello-canary.yaml
index ef4190e..0f3f5bb 100644
--- a/kubernetes/deployments/hello-canary.yaml
+++ b/kubernetes/deployments/hello-canary.yaml
@@ -1,8 +1,11 @@
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: hello-canary
 spec:
+  selector:
+    matchLabels:
+      app: hello
   replicas: 1
   template:
     metadata:
diff --git a/kubernetes/deployments/hello-green.yaml b/kubernetes/deployments/hello-green.yaml
index 8c47471..d0fc463 100644
--- a/kubernetes/deployments/hello-green.yaml
+++ b/kubernetes/deployments/hello-green.yaml
@@ -1,8 +1,11 @@
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: hello-green
 spec:
+  selector:
+    matchLabels:
+      app: hello
   replicas: 3
   template:
     metadata:
diff --git a/kubernetes/deployments/hello.yaml b/kubernetes/deployments/hello.yaml
index e3315a1..3af27e9 100644
--- a/kubernetes/deployments/hello.yaml
+++ b/kubernetes/deployments/hello.yaml
@@ -1,8 +1,11 @@
-apiVersion: extensions/v1beta1
+apiVersion: apps/v1
 kind: Deployment
 metadata:
   name: hello
 spec:
+  selector:
+    matchLabels:
+      app: hello
   replicas: 3
   template:
     metadata: