diff --git a/packages/ckb-sdk-core/__tests__/successFixtures.json b/packages/ckb-sdk-core/__tests__/successFixtures.json
index 7fc7596c..eb75f19b 100644
--- a/packages/ckb-sdk-core/__tests__/successFixtures.json
+++ b/packages/ckb-sdk-core/__tests__/successFixtures.json
@@ -13,9 +13,9 @@
     "target": {
       "codeHash": "f1951123466e4479842387a66fabfd6b65fc87fd84ae8e6cd3053edb27fff2fd",
       "outPoint": {
-        "blockHash": "fc3ad90e38598032598c90b4ad4fefb420bacabaa7c5b40111daca7dfcc1f9d4",
+        "blockHash": "c3b42742ea8658c93de23f16a10c43212bd8b24a6bde5a93b8446dba3fb2a728",
         "cell": {
-          "txHash": "3f09b95f8886723cc850db0beb9c153169151c663f3e8f832dc04421fbb1f382",
+          "txHash": "6950a2491d7c0ccac11fcb985cbb3f6b5a70eaf6fff952c08a20d1b99c01fb98",
           "index": "1"
         }
       }
diff --git a/packages/ckb-sdk-rpc/__tests__/ckb-rpc-helpers.js b/packages/ckb-sdk-rpc/__tests__/ckb-rpc-helpers.js
index 78d675d5..d1e4e0ad 100644
--- a/packages/ckb-sdk-rpc/__tests__/ckb-rpc-helpers.js
+++ b/packages/ckb-sdk-rpc/__tests__/ckb-rpc-helpers.js
@@ -44,15 +44,11 @@ describe('ckb-rpc settings and helpers', () => {
     expect(rpc.methods.length).toBe(17)
   })
 
-  it('has initialized node url of http://localhost:8114', () => {
-    expect(rpc.methods[0].constructor.node.url).toBe('http://localhost:8114')
-  })
-
   it('set node url to http://test.localhost:8114', () => {
     const url = 'http://test.localhost:8114'
     rpc.setNode({
       url,
     })
-    expect(rpc.methods[0].constructor.node.url).toBe(url)
+    expect(rpc.node.url).toBe(url)
   })
 })
diff --git a/packages/ckb-sdk-rpc/src/index.ts b/packages/ckb-sdk-rpc/src/index.ts
index b2678093..322b90a6 100644
--- a/packages/ckb-sdk-rpc/src/index.ts
+++ b/packages/ckb-sdk-rpc/src/index.ts
@@ -29,16 +29,12 @@ class CKBRPC extends DefaultRPC {
   }
 
   public setNode(node: CKBComponents.Node): CKBComponents.Node {
-    this.node = {
-      ...this.node,
-      ...node,
-    }
-    Method.setNode(this.node)
+    Object.assign(this.node, node)
     return this.node
   }
 
   public addMethod = (options: CKBComponents.Method) => {
-    const method = new Method(options)
+    const method = new Method(this.node, options)
     this.methods.push(method)
 
     Object.defineProperty(this, options.name, {
diff --git a/packages/ckb-sdk-rpc/src/method.ts b/packages/ckb-sdk-rpc/src/method.ts
index 06b94932..76ff7c17 100644
--- a/packages/ckb-sdk-rpc/src/method.ts
+++ b/packages/ckb-sdk-rpc/src/method.ts
@@ -2,36 +2,28 @@ import axios from 'axios'
 import { DebugLevel, LogColor } from './enum'
 
 class Method {
-  private _options: CKBComponents.Method = {
+  static debugLevel = DebugLevel.Off
+
+  private options: CKBComponents.Method = {
     name: '',
     method: '',
     paramsFormatters: [],
     resultFormatters: undefined,
   }
 
-  static debugLevel = DebugLevel.Off
-
-  static node: CKBComponents.Node = {
-    url: '',
-  }
-
-  static setNode = (node: CKBComponents.Node) => {
-    Method.node = {
-      ...Method.node,
-      ...node,
-    }
-  }
+  private node: CKBComponents.Node
 
-  constructor(options: CKBComponents.Method) {
-    this._options = options
+  constructor(node: CKBComponents.Node, options: CKBComponents.Method) {
+    this.node = node
+    this.options = options
   }
 
   public call = (...params: (string | number)[]) => {
-    const data = params.map((p, i) => (this._options.paramsFormatters[i] && this._options.paramsFormatters[i](p)) || p)
+    const data = params.map((p, i) => (this.options.paramsFormatters[i] && this.options.paramsFormatters[i](p)) || p)
     const id = Math.round(Math.random() * 10000)
     const payload = {
       id,
-      method: this._options.method,
+      method: this.options.method,
       params: data,
       jsonrpc: '2.0',
     }
@@ -41,7 +33,7 @@ class Method {
         'content-type': 'application/json',
       },
       data: payload,
-      url: Method.node.url,
+      url: this.node.url,
     }).then(res => {
       if (res.data.id !== id) {
         throw new Error('JSONRPC id not match')
@@ -50,11 +42,11 @@ class Method {
         /* eslint-disabled */
         console.group()
         console.group()
-        console.info(LogColor.Cyan, `\n----- ${this._options.name} request -----`, LogColor.Reset)
+        console.info(LogColor.Cyan, `\n----- ${this.options.name} request -----`, LogColor.Reset)
         console.info(JSON.stringify(payload, null, 2))
         console.groupEnd()
         console.group()
-        console.info(LogColor.Cyan, `----- ${this._options.name} response -----`, LogColor.Reset)
+        console.info(LogColor.Cyan, `----- ${this.options.name} response -----`, LogColor.Reset)
         console.info(JSON.stringify(res.data, null, 2))
         console.groupEnd()
         console.groupEnd()
@@ -63,7 +55,7 @@ class Method {
       if (res.data.error) {
         throw new Error(JSON.stringify(res.data.error))
       }
-      return this._options.resultFormatters ? this._options.resultFormatters(res.data.result) : res.data.result
+      return this.options.resultFormatters ? this.options.resultFormatters(res.data.result) : res.data.result
     })
   }
 }