diff --git a/Makefile b/Makefile
index 528b635..b6c5096 100644
--- a/Makefile
+++ b/Makefile
@@ -165,7 +165,7 @@ ENVTEST ?= $(LOCALBIN)/setup-envtest
 
 ## Tool Versions
 KUSTOMIZE_VERSION ?= v3.8.7
-CONTROLLER_TOOLS_VERSION ?= v0.8.0
+CONTROLLER_TOOLS_VERSION ?= v0.11.3
 
 KUSTOMIZE_INSTALL_SCRIPT ?= "https://raw.githubusercontent.com/kubernetes-sigs/kustomize/master/hack/install_kustomize.sh"
 .PHONY: kustomize
diff --git a/api/v1alpha1/upstream_types.go b/api/v1alpha1/upstream_types.go
index d1ddfc4..8440d3b 100644
--- a/api/v1alpha1/upstream_types.go
+++ b/api/v1alpha1/upstream_types.go
@@ -22,9 +22,11 @@ import (
 
 // UpstreamSpec defines the desired state of Upstream
 type UpstreamSpec struct {
-	Client string            `json:"client"`
-	TCP    *UpstreamSpec_TCP `json:"tcp"`
-	UDP    *UpstreamSpec_UDP `json:"udp"`
+	Client string `json:"client"`
+	// +optional
+	TCP *UpstreamSpec_TCP `json:"tcp"`
+	// +optional
+	UDP *UpstreamSpec_UDP `json:"udp"`
 }
 
 type UpstreamSpec_TCP struct {
@@ -33,8 +35,9 @@ type UpstreamSpec_TCP struct {
 	Server UpstreamSpec_TCP_Server `json:"server"`
 	// +kubebuilder:validation:Enum=v1;v2
 	// +optional
-	ProxyProtocol *string                       `json:"proxyProtocol"`
-	HealthCheck   *UpstreamSpec_TCP_HealthCheck `json:"healthCheck"`
+	ProxyProtocol *string `json:"proxyProtocol"`
+	// +optional
+	HealthCheck *UpstreamSpec_TCP_HealthCheck `json:"healthCheck"`
 }
 
 type UpstreamSpec_TCP_Server struct {
diff --git a/charts/frp-operator/crds/crds.yaml b/charts/frp-operator/crds/crds.yaml
index 12242eb..78e6e37 100644
--- a/charts/frp-operator/crds/crds.yaml
+++ b/charts/frp-operator/crds/crds.yaml
@@ -3,7 +3,7 @@ apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition
 metadata:
   annotations:
-    controller-gen.kubebuilder.io/version: v0.8.0
+    controller-gen.kubebuilder.io/version: v0.11.3
   creationTimestamp: null
   name: clients.frp.zufardhiyaulhaq.com
 spec:
@@ -77,18 +77,12 @@ spec:
     storage: true
     subresources:
       status: {}
-status:
-  acceptedNames:
-    kind: ""
-    plural: ""
-  conditions: []
-  storedVersions: []
 ---
 apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition
 metadata:
   annotations:
-    controller-gen.kubebuilder.io/version: v0.8.0
+    controller-gen.kubebuilder.io/version: v0.11.3
   creationTimestamp: null
   name: upstreams.frp.zufardhiyaulhaq.com
 spec:
@@ -154,7 +148,6 @@ spec:
                     - port
                     type: object
                 required:
-                - healthCheck
                 - host
                 - port
                 - server
@@ -179,8 +172,6 @@ spec:
                 type: object
             required:
             - client
-            - tcp
-            - udp
             type: object
           status:
             description: UpstreamStatus defines the observed state of Upstream
@@ -190,9 +181,3 @@ spec:
     storage: true
     subresources:
       status: {}
-status:
-  acceptedNames:
-    kind: ""
-    plural: ""
-  conditions: []
-  storedVersions: []
diff --git a/charts/releases/frp-operator-1.1.0.tgz b/charts/releases/frp-operator-1.1.0.tgz
index d24e0f9..1be2b42 100644
Binary files a/charts/releases/frp-operator-1.1.0.tgz and b/charts/releases/frp-operator-1.1.0.tgz differ
diff --git a/charts/releases/index.yaml b/charts/releases/index.yaml
index 8d6e6ad..9da9f3b 100644
--- a/charts/releases/index.yaml
+++ b/charts/releases/index.yaml
@@ -3,10 +3,10 @@ entries:
   frp-operator:
   - apiVersion: v2
     appVersion: 0.3.0
-    created: "2024-04-04T22:25:33.990033+07:00"
+    created: "2024-04-13T22:50:20.361732+07:00"
     description: Expose your service in Kubernetes to the Internet with open source
       FRP!
-    digest: b3c9f018a4f8fbd3a94f2c19ed72e99276b5fd7e59468f8109ab479e7230aab7
+    digest: 96f342725e362414480ad385e0ad6db348754e8e3bf5db0d9a7e74ee9c5905a7
     home: https://github.com/zufardhiyaulhaq/frp-operator
     maintainers:
     - email: zufardhiyaulhaq@gmail.com
@@ -19,7 +19,7 @@ entries:
     version: 1.1.0
   - apiVersion: v2
     appVersion: 0.2.0
-    created: "2024-04-04T22:25:33.988819+07:00"
+    created: "2024-04-13T22:50:20.360889+07:00"
     description: Expose your service in Kubernetes to the Internet with open source
       FRP!
     digest: 5f80631b3ce1dad5ed2039abb144506fa5795d378f4d465d33c475f216b77df1
@@ -33,4 +33,4 @@ entries:
     urls:
     - frp-operator-1.0.0.tgz
     version: 1.0.0
-generated: "2024-04-04T22:25:33.985268+07:00"
+generated: "2024-04-13T22:50:20.359307+07:00"
diff --git a/config/crd/bases/frp.zufardhiyaulhaq.com_clients.yaml b/config/crd/bases/frp.zufardhiyaulhaq.com_clients.yaml
index aba268b..28bb299 100644
--- a/config/crd/bases/frp.zufardhiyaulhaq.com_clients.yaml
+++ b/config/crd/bases/frp.zufardhiyaulhaq.com_clients.yaml
@@ -3,7 +3,7 @@ apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition
 metadata:
   annotations:
-    controller-gen.kubebuilder.io/version: v0.8.0
+    controller-gen.kubebuilder.io/version: v0.11.3
   creationTimestamp: null
   name: clients.frp.zufardhiyaulhaq.com
 spec:
@@ -77,9 +77,3 @@ spec:
     storage: true
     subresources:
       status: {}
-status:
-  acceptedNames:
-    kind: ""
-    plural: ""
-  conditions: []
-  storedVersions: []
diff --git a/config/crd/bases/frp.zufardhiyaulhaq.com_upstreams.yaml b/config/crd/bases/frp.zufardhiyaulhaq.com_upstreams.yaml
index 38b886c..8c78902 100644
--- a/config/crd/bases/frp.zufardhiyaulhaq.com_upstreams.yaml
+++ b/config/crd/bases/frp.zufardhiyaulhaq.com_upstreams.yaml
@@ -3,7 +3,7 @@ apiVersion: apiextensions.k8s.io/v1
 kind: CustomResourceDefinition
 metadata:
   annotations:
-    controller-gen.kubebuilder.io/version: v0.8.0
+    controller-gen.kubebuilder.io/version: v0.11.3
   creationTimestamp: null
   name: upstreams.frp.zufardhiyaulhaq.com
 spec:
@@ -69,7 +69,6 @@ spec:
                     - port
                     type: object
                 required:
-                - healthCheck
                 - host
                 - port
                 - server
@@ -94,8 +93,6 @@ spec:
                 type: object
             required:
             - client
-            - tcp
-            - udp
             type: object
           status:
             description: UpstreamStatus defines the observed state of Upstream
@@ -105,9 +102,3 @@ spec:
     storage: true
     subresources:
       status: {}
-status:
-  acceptedNames:
-    kind: ""
-    plural: ""
-  conditions: []
-  storedVersions: []
diff --git a/pkg/client/models/config.go b/pkg/client/models/config.go
index e134403..0ba2efa 100644
--- a/pkg/client/models/config.go
+++ b/pkg/client/models/config.go
@@ -113,6 +113,10 @@ func NewConfig(k8sclient client.Client, clientObject *frpv1alpha1.Client, upstre
 			Name: upstreamObject.Name,
 		}
 
+		if upstreamObject.Spec.TCP == nil && upstreamObject.Spec.UDP == nil {
+			return config, errors.NewBadRequest("TCP or UDP upstream is required")
+		}
+
 		if upstreamObject.Spec.TCP != nil && upstreamObject.Spec.UDP != nil {
 			return config, errors.NewBadRequest("Multiple protocol on the same Upstream object")
 		}