diff --git a/README.md b/README.md
index 475ae537..370d00e9 100644
--- a/README.md
+++ b/README.md
@@ -144,21 +144,21 @@ pods = client.api("v1").resource("pods", namespace: "default").delete_collection
 
 ```crystal
 pod = K8S::Api::Core::V1::Pod.new(
-  metadata: ::K8S::ObjectMeta.new(
-    name: name.nil? ? random_string(10) : name,
+  metadata: {
+    name: "pod-name",
     namespace: "default",
     labels: {
       "app" => "kube-client-test",
     },
-  ),
-  spec: K8S::Api::Core::V1::PodSpec.new(
+  },
+  spec: {
     containers: [
-      K8S::Api::Core::V1::Container.new(
+      {
         name: "test",
         image: "test",
-      ),
+      },
     ],
-  )
+  }
 )
 
 logger.info "Create pod=#{pod.metadata!.name} in namespace=#{pod.metadata!.namespace}"
diff --git a/shard.yml b/shard.yml
index b757186f..216fcde2 100644
--- a/shard.yml
+++ b/shard.yml
@@ -5,7 +5,7 @@ authors:
 repository: "https://github.com/spoved/kube-client.cr"
 license: MIT
 
-version: 0.3.2
+version: 0.4.0
 crystal: ">= 1.2.2, < 2.0.0"
 
 dependencies:
diff --git a/src/kube-client/version.cr b/src/kube-client/version.cr
index f220e7f9..cfab9720 100644
--- a/src/kube-client/version.cr
+++ b/src/kube-client/version.cr
@@ -1,5 +1,5 @@
 module Kube
   class Client
-    VERSION = "0.3.2"
+    VERSION = "0.4.0"
   end
 end