diff --git a/src/components/market/NftItem.vue b/src/components/market/NftItem.vue
index b7fe8d1..c386614 100644
--- a/src/components/market/NftItem.vue
+++ b/src/components/market/NftItem.vue
@@ -117,8 +117,8 @@ export default class extends Vue {
         nonce,
         signature
       }
-      const res: any = await buyBox(buyData)
       await this.bc.increaseAllowance(this.data.coinAddress!, price)
+      const res: any = await buyBox(buyData)
       const orderId = res.order_id
       localStorage.setItem('tmp_presale_order_id', orderId)
       EventBus.$emit(PRESALE_ORDER_GET, orderId)
diff --git a/src/utils/blockchain.ts b/src/utils/blockchain.ts
index 1003f09..ff914c3 100644
--- a/src/utils/blockchain.ts
+++ b/src/utils/blockchain.ts
@@ -207,7 +207,8 @@ export class BlockChain {
 
   public async increaseAllowance(address: string, price: string) {
     const coinInstance: any = await this.getCoinInstance(address)
-    await coinInstance.methods.increaseAllowance(MALL_ADDRESS, price).send({ gas: 1000000 })
+    const res = await coinInstance.methods.increaseAllowance(MALL_ADDRESS, price).send({ gas: 1000000 })
+    console.log('increaseAllowance: ', res)
   }
 
   public parsePrice(price: number, decimals: number) {
diff --git a/src/utils/config_chain.ts b/src/utils/config_chain.ts
index b8bd4d2..a221e60 100644
--- a/src/utils/config_chain.ts
+++ b/src/utils/config_chain.ts
@@ -287,4 +287,4 @@ export const ERC20ABI = [
   }
 ]
 
-export const MALL_ADDRESS = '0x31F29C9A3D0c1c13C825475aebF0d964b5B47c45'
+export const MALL_ADDRESS = '0x40ffB0642e0B4494c47b6ad781862C0BDB3256A8'