diff --git a/constant/index.ts b/constant/index.ts
index 3fb11691..380d8e6c 100644
--- a/constant/index.ts
+++ b/constant/index.ts
@@ -18,7 +18,6 @@ export const ISCN_MIN_BALANCE = 0.01;
 
 export const ISCN_GAS_FEE = 200000;
 export const ISCN_GAS_MULTIPLIER = 1.5;
-export const UPDATE_ISCN_GAS_FEE = 300000;
 
 export const ISCN_REGISTRY_NAME = 'likecoin-chain';
 
diff --git a/utils/cosmos/iscn/sign.ts b/utils/cosmos/iscn/sign.ts
index 8cc45c22..06571404 100644
--- a/utils/cosmos/iscn/sign.ts
+++ b/utils/cosmos/iscn/sign.ts
@@ -169,7 +169,7 @@ export async function signISCN(
     ? signingClient.updateISCNRecord(address, iscnId as string, tx, {
         memo: memo || 'app.like.co',
         fee: {
-          gas,
+          gas: new BigNumber(gas).multipliedBy(ISCN_GAS_MULTIPLIER).toFixed(0),
           amount: [{
               denom: DEFAULT_GAS_PRICE[0].denom,
               amount: new BigNumber(gas).multipliedBy(DEFAULT_GAS_PRICE[0].amount).toFixed(0),
@@ -190,29 +190,3 @@ export async function signISCN(
   return res as DeliverTxResponse
 }
 
-export async function updateISCNRecord(
-  signer: OfflineSigner,
-  address: string,
-  iscnId: string,
-  payload: ISCNSignPayload,
-) {
-  const signingClient = await getSigningClient()
-  await signingClient.connectWithSigner(network.rpcURL, signer)
-  const signingPromise = signingClient.updateISCNRecord(
-    address,
-    iscnId,
-    payload,
-    {
-      fee: {
-        gas: (new BigNumber(ISCN_GAS_FEE).times(ISCN_GAS_MULTIPLIER).toFixed(0)).toString(),
-        amount: [{
-            denom: DEFAULT_GAS_PRICE[0].denom,
-            amount: DEFAULT_GAS_PRICE[0].amount.toString(),
-          }],
-      },
-    },
-  )
-
-  const res = await signingPromise
-  return res as DeliverTxResponse
-}