diff --git a/example/claim-update.ts b/example/claim-update.ts
index 3d8be8f..952e9c0 100644
--- a/example/claim-update.ts
+++ b/example/claim-update.ts
@@ -2,7 +2,7 @@ import { addressToScript } from '@nervosnetwork/ckb-sdk-utils'
 import { Collector } from '../src/collector'
 import { Aggregator } from '../src/aggregator'
 import { generateClaimUpdateCotaTx } from '../src/service/cota'
-import { CotaNft, Service } from '../src'
+import { CotaNft, Service, FEE } from '../src'
 import CKB from '@nervosnetwork/ckb-sdk-core'
 
 const TEST_ADDRESS = 'ckt1qyq0scej4vn0uka238m63azcel7cmcme7f2sxj5ska'
diff --git a/example/claim.ts b/example/claim.ts
index 9ba0b32..f79507f 100644
--- a/example/claim.ts
+++ b/example/claim.ts
@@ -2,7 +2,7 @@ import { addressToScript } from '@nervosnetwork/ckb-sdk-utils'
 import { Collector } from '../src/collector'
 import { Aggregator } from '../src/aggregator'
 import { generateClaimCotaTx } from '../src/service/cota'
-import { Claim, Service } from '../src'
+import { Claim, Service, FEE } from '../src'
 import CKB from '@nervosnetwork/ckb-sdk-core'
 
 const TEST_ADDRESS = 'ckt1qyq0scej4vn0uka238m63azcel7cmcme7f2sxj5ska'
diff --git a/example/define-flashsigner.ts b/example/define-flashsigner.ts
index 62286e7..82506bd 100644
--- a/example/define-flashsigner.ts
+++ b/example/define-flashsigner.ts
@@ -2,7 +2,7 @@ import { addressToScript, serializeWitnessArgs } from '@nervosnetwork/ckb-sdk-ut
 import { Collector } from '../src/collector'
 import { Aggregator } from '../src/aggregator'
 import { generateDefineCotaTx } from '../src/service/cota'
-import { Service } from '../src'
+import { Service, FEE } from '../src'
 import { toSnakeCase } from '../src/utils'
 
 const TEST_ADDRESS = 'ckt1qpth5hjexr3wehtzqpm97dzzucgemjv7sl05wnez7y72hqvuszeyyqvz2vhrf3xz0jr8dcmxlv059kmpx4tt5vcluapd4'
diff --git a/example/define.ts b/example/define.ts
index f5896c4..24f613b 100644
--- a/example/define.ts
+++ b/example/define.ts
@@ -2,7 +2,7 @@ import { addressToScript } from '@nervosnetwork/ckb-sdk-utils'
 import { Collector } from '../src/collector'
 import { Aggregator } from '../src/aggregator'
 import { generateDefineCotaTx } from '../src/service/cota'
-import { CotaInfo, Service } from '../src'
+import { CotaInfo, Service, FEE } from '../src'
 
 const TEST_PRIVATE_KEY = '0xc5bd09c9b954559c70a77d68bde95369e2ce910556ddc20f739080cde3b62ef2'
 const TEST_ADDRESS = 'ckt1qyq0scej4vn0uka238m63azcel7cmcme7f2sxj5ska'
diff --git a/example/issuer.ts b/example/issuer.ts
index c7dc589..aa8eb44 100644
--- a/example/issuer.ts
+++ b/example/issuer.ts
@@ -2,7 +2,7 @@ import { addressToScript } from '@nervosnetwork/ckb-sdk-utils'
 import { Collector } from '../src/collector'
 import { Aggregator } from '../src/aggregator'
 import { generateIssuerInfoTx } from '../src/service/cota'
-import { IssuerInfo, Service } from '../src'
+import { IssuerInfo, Service, FEE } from '../src'
 import CKB from '@nervosnetwork/ckb-sdk-core'
 
 const TEST_PRIVATE_KEY = '0xc5bd09c9b954559c70a77d68bde95369e2ce910556ddc20f739080cde3b62ef2'
diff --git a/example/mint.ts b/example/mint.ts
index 6926ded..a15359d 100644
--- a/example/mint.ts
+++ b/example/mint.ts
@@ -2,7 +2,7 @@ import { addressToScript, serializeScript } from '@nervosnetwork/ckb-sdk-utils'
 import { Collector } from '../src/collector'
 import { Aggregator } from '../src/aggregator'
 import { generateMintCotaTx } from '../src/service/cota'
-import { MintCotaInfo, Service } from '../src'
+import { MintCotaInfo, Service, FEE } from '../src'
 import CKB from '@nervosnetwork/ckb-sdk-core'
 
 const TEST_PRIVATE_KEY = '0xc5bd09c9b954559c70a77d68bde95369e2ce910556ddc20f739080cde3b62ef2'
diff --git a/example/registry.js b/example/registry.js
index cec312d..13614a2 100644
--- a/example/registry.js
+++ b/example/registry.js
@@ -31,12 +31,15 @@ const run = async () => {
 
   // Mainnet
   // let rawTx = await generateRegisterCotaTx(service, [unregisteredCotaLock], provideCKBLock, FEE, true)
-  
+
   const secp256k1Dep = await secp256k1CellDep(ckb)
   rawTx.cellDeps.push(secp256k1Dep)
 
   const registryLock = getAlwaysSuccessLock(false)
 
+  // Mainnet
+  // const registryLock = getAlwaysSuccessLock(true)
+
   let keyMap = new Map()
   keyMap.set(scriptToHash(registryLock), '')
   keyMap.set(scriptToHash(provideCKBLock), TEST_PRIVATE_KEY)
diff --git a/example/registry.ts b/example/registry.ts
index eafa944..dbacdd2 100644
--- a/example/registry.ts
+++ b/example/registry.ts
@@ -18,7 +18,7 @@ const secp256k1CellDep = async (ckb: CKB): Promise<CKBComponents.CellDep> => {
 const run = async () => {
   const service: Service = {
     collector: new Collector({ ckbNodeUrl: 'http://localhost:8114', ckbIndexerUrl: 'http://localhost:8116' }),
-    aggregator: new Aggregator({ registryUrl: 'http:/localhost:3050/', cotaUrl: 'http://localhost:3030' }),
+    aggregator: new Aggregator({ registryUrl: 'http://localhost:3050', cotaUrl: 'http://localhost:3030' }),
   }
   const ckb = service.collector.getCkb()
   const provideCKBLock = addressToScript(TEST_ADDRESS)
@@ -33,6 +33,9 @@ const run = async () => {
 
   const registryLock = getAlwaysSuccessLock(false)
 
+  // Mainnet
+  // const registryLock = getAlwaysSuccessLock(true)
+
   let keyMap = new Map<string, string>()
   keyMap.set(scriptToHash(registryLock), '')
   keyMap.set(scriptToHash(provideCKBLock), TEST_PRIVATE_KEY)
diff --git a/example/transfer-update.ts b/example/transfer-update.ts
index 741baca..6d519bc 100644
--- a/example/transfer-update.ts
+++ b/example/transfer-update.ts
@@ -2,7 +2,7 @@ import { addressToScript, serializeScript } from '@nervosnetwork/ckb-sdk-utils'
 import { Collector } from '../src/collector'
 import { Aggregator } from '../src/aggregator'
 import { generateTransferUpdateCotaTx } from '../src/service/cota'
-import { Service, TransferUpdate } from '../src'
+import { Service, TransferUpdate, FEE  } from '../src'
 import CKB from '@nervosnetwork/ckb-sdk-core'
 
 const TEST_ADDRESS = 'ckt1qyq0scej4vn0uka238m63azcel7cmcme7f2sxj5ska'
diff --git a/example/transfer.ts b/example/transfer.ts
index 542fc69..53898e2 100644
--- a/example/transfer.ts
+++ b/example/transfer.ts
@@ -2,7 +2,7 @@ import { addressToScript, serializeScript } from '@nervosnetwork/ckb-sdk-utils'
 import { Collector } from '../src/collector'
 import { Aggregator } from '../src/aggregator'
 import { generateTransferCotaTx } from '../src/service/cota'
-import { TransferWithdrawal, Service, Hex } from '../src'
+import { TransferWithdrawal, Service, FEE } from '../src'
 import CKB from '@nervosnetwork/ckb-sdk-core'
 
 const TEST_ADDRESS = 'ckt1qyq0scej4vn0uka238m63azcel7cmcme7f2sxj5ska'
diff --git a/example/update.ts b/example/update.ts
index f08670b..1347d60 100644
--- a/example/update.ts
+++ b/example/update.ts
@@ -2,7 +2,7 @@ import { addressToScript } from '@nervosnetwork/ckb-sdk-utils'
 import { Collector } from '../src/collector'
 import { Aggregator } from '../src/aggregator'
 import { generateUpdateCotaTx } from '../src/service/cota'
-import { CotaNft, Service } from '../src'
+import { CotaNft, Service, FEE } from '../src'
 import CKB from '@nervosnetwork/ckb-sdk-core'
 
 const TEST_PRIVATE_KEY = '0xc5bd09c9b954559c70a77d68bde95369e2ce910556ddc20f739080cde3b62ef2'
diff --git a/example/withdraw.ts b/example/withdraw.ts
index e9898eb..3984e27 100644
--- a/example/withdraw.ts
+++ b/example/withdraw.ts
@@ -2,7 +2,7 @@ import { addressToScript, serializeScript } from '@nervosnetwork/ckb-sdk-utils'
 import { Collector } from '../src/collector'
 import { Aggregator } from '../src/aggregator'
 import { generateWithdrawCotaTx } from '../src/service/cota'
-import { Service, TransferWithdrawal } from '../src'
+import { Service, TransferWithdrawal, FEE } from '../src'
 import CKB from '@nervosnetwork/ckb-sdk-core'
 
 const TEST_ADDRESS = 'ckt1qyq0scej4vn0uka238m63azcel7cmcme7f2sxj5ska'
diff --git a/package.json b/package.json
index 46265e5..647db07 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@nervina-labs/cota-sdk",
-  "version": "0.4.5",
+  "version": "0.4.6",
   "description": "The SDK of CoTA",
   "repository": "git@github.com:nervina-labs/cota-sdk-js.git",
   "author": "duanyytop <duanyytop@gmail.com>",
diff --git a/src/aggregator/index.ts b/src/aggregator/index.ts
index b7b1c1a..f86c3ec 100644
--- a/src/aggregator/index.ts
+++ b/src/aggregator/index.ts
@@ -66,7 +66,7 @@ export class Aggregator {
           headers: {
             'Content-Type': 'application/json',
           },
-          timeout: 60000,
+          timeout: 300000,
           data: body,
         })
       ).data
diff --git a/src/service/registry/index.ts b/src/service/registry/index.ts
index c0cbd35..4398d7c 100644
--- a/src/service/registry/index.ts
+++ b/src/service/registry/index.ts
@@ -70,7 +70,8 @@ export const generateRegisterCotaTx = async (
 
   let outputs = await generateCotaOutputs(capacity, cotaLocks, lock)
   outputs = [registryCell.output].concat(outputs)
-  outputs.at(-1).capacity = `0x${(BigInt(outputs.at(-1).capacity) - FEE).toString(16)}`
+  const length = outputs.length
+  outputs[length-1].capacity = `0x${(BigInt(outputs[length-1].capacity) - FEE).toString(16)}`
 
   const lockHashes = cotaLocks.map(lock => scriptToHash(lock))
   const { smtRootHash, registrySmtEntry } = await service.aggregator.generateRegisterCotaSmt(lockHashes)
diff --git a/yarn.lock b/yarn.lock
index 8482869..c50e020 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -890,9 +890,9 @@ follow-redirects@^1.14.0:
   integrity sha512-+hbxoLbFMbRKDwohX8GkTataGqO6Jb7jGwpAlwgy2bIz25XtRm7KEzJM76R1WiNT5SwZkX4Y75SwBolkpmE7iQ==
 
 follow-redirects@^1.14.9:
-  version "1.14.9"
-  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.14.9.tgz#dd4ea157de7bfaf9ea9b3fbd85aa16951f78d8d7"
-  integrity sha512-MQDfihBQYMcyy5dhRDJUHcw7lb2Pv/TuE6xP1vyraLukNDHKbDxDNaOE3NbCAdKQApno+GPRyo1YAp89yCjK4w==
+  version "1.15.0"
+  resolved "https://registry.yarnpkg.com/follow-redirects/-/follow-redirects-1.15.0.tgz#06441868281c86d0dda4ad8bdaead2d02dca89d4"
+  integrity sha512-aExlJShTV4qOUOL7yF1U5tvLCB0xQuudbf6toyYA0E/acBNw71mvjFTnLaRp50aQaYocMR0a/RMMBIHeZnGyjQ==
 
 form-data@^4.0.0:
   version "4.0.0"