diff --git a/pkg/modules/generators/app_configurations_generator.go b/pkg/modules/generators/app_configurations_generator.go
index 5e33af83..317e729d 100644
--- a/pkg/modules/generators/app_configurations_generator.go
+++ b/pkg/modules/generators/app_configurations_generator.go
@@ -26,6 +26,7 @@ import (
 	"gopkg.in/yaml.v3"
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
 	"k8s.io/apimachinery/pkg/runtime"
+	k8sjson "k8s.io/apimachinery/pkg/util/json"
 	"kcl-lang.io/kpm/pkg/package"
 
 	v1 "kusionstack.io/kusion/pkg/apis/api.kusion.io/v1"
@@ -214,7 +215,17 @@ func PatchWorkload(workload *v1.Resource, patcher *v1.Patcher) error {
 	}
 
 	un := &unstructured.Unstructured{}
-	un.SetUnstructuredContent(workload.Attributes)
+	attributes := workload.Attributes
+
+	// normalize attributes with K8s json util. Especially numbers are converted to int64 or float64
+	out, err := k8sjson.Marshal(attributes)
+	if err != nil {
+		return err
+	}
+	if err = k8sjson.Unmarshal(out, &attributes); err != nil {
+		return err
+	}
+	un.SetUnstructuredContent(attributes)
 
 	// patch labels
 	if patcher.Labels != nil {
diff --git a/pkg/modules/generators/app_configurations_generator_test.go b/pkg/modules/generators/app_configurations_generator_test.go
index 9fac6a9c..25f66e78 100644
--- a/pkg/modules/generators/app_configurations_generator_test.go
+++ b/pkg/modules/generators/app_configurations_generator_test.go
@@ -8,6 +8,7 @@ import (
 
 	"github.com/bytedance/mockey"
 	"github.com/stretchr/testify/assert"
+	"gopkg.in/yaml.v3"
 	appsv1 "k8s.io/api/apps/v1"
 	corev1 "k8s.io/api/core/v1"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
@@ -292,6 +293,14 @@ func Test_patchWorkload(t *testing.T) {
 						{
 							Name:  "my-app",
 							Image: "my-app-image",
+							ReadinessProbe: &corev1.Probe{
+								ProbeHandler: corev1.ProbeHandler{
+									TCPSocket: &corev1.TCPSocketAction{
+										Host: "localhost:8080",
+									},
+								},
+								InitialDelaySeconds: 2,
+							},
 							Env: []corev1.EnvVar{
 								{
 									Name:  "MY_ENV",
@@ -304,8 +313,14 @@ func Test_patchWorkload(t *testing.T) {
 			},
 		},
 	}
-	// convert deploy to unstructured
+
+	// convert deploy to map with yamlv3 to simulate what we did in the module framework
 	deploymentUnstructured, err := runtime.DefaultUnstructuredConverter.ToUnstructured(deployment)
+	assert.NoError(t, err)
+	out, err := yaml.Marshal(deploymentUnstructured)
+	assert.NoError(t, err)
+	err = yaml.Unmarshal(out, deploymentUnstructured)
+
 	res := &v1.Resource{
 		ID:         "apps/v1:Deployment:default:default-dev-foo",
 		Type:       "Kubernetes",