Merge pull request #3625 from hpandeycodeit/kube_version

 Updated the default kubernetes version

pkg/minikube/constants/constants.go

@@ -129,7 +129,7 @@ kubectl: {{.Kubeconfig}}
 var DefaultIsoUrl = fmt.Sprintf("https://storage.googleapis.com/%s/minikube-%s.iso", minikubeVersion.GetIsoPath(), minikubeVersion.GetIsoVersion())
 var DefaultIsoShaUrl = DefaultIsoUrl + ShaSuffix
 
-var DefaultKubernetesVersion = "v1.13.2"
+var DefaultKubernetesVersion = "v1.13.3"
 
 var ConfigFilePath = MakeMiniPath("config")
 var ConfigFile = MakeMiniPath("config", "config.json")