diff --git a/src/instruction/pumpfun.rs b/src/instruction/pumpfun.rs
index 28d3ce6..9ddc71b 100755
--- a/src/instruction/pumpfun.rs
+++ b/src/instruction/pumpfun.rs
@@ -1,5 +1,5 @@
 use anyhow::{anyhow, Result};
-use solana_sdk::{instruction::Instruction, native_token::sol_to_lamports};
+use solana_sdk::{instruction::Instruction, native_token::sol_str_to_lamports};
 use spl_associated_token_account::{
     get_associated_token_address, instruction::create_associated_token_account,
 };
@@ -57,7 +57,7 @@ impl InstructionBuilder for PumpFunInstructionBuilder {
         let mut buy_token_amount =
             get_buy_token_amount_from_sol_amount(&bonding_curve, params.sol_amount);
         if buy_token_amount <= 100 * 1_000_000_u64 {
-            buy_token_amount = if max_sol_cost > sol_to_lamports(0.01) {
+            buy_token_amount = if max_sol_cost > sol_str_to_lamports("0.01").unwrap_or(0) {
                 25547619 * 1_000_000_u64
             } else {
                 255476 * 1_000_000_u64
diff --git a/src/trading/common/transaction_builder.rs b/src/trading/common/transaction_builder.rs
index 79fa518..178c77e 100755
--- a/src/trading/common/transaction_builder.rs
+++ b/src/trading/common/transaction_builder.rs
@@ -2,7 +2,7 @@ use solana_hash::Hash;
 use solana_sdk::{
     instruction::Instruction,
     message::{v0, VersionedMessage},
-    native_token::sol_to_lamports,
+    native_token::sol_str_to_lamports,
     pubkey::Pubkey,
     signature::Keypair,
     signer::Signer,
@@ -85,7 +85,7 @@ pub async fn build_tip_transaction(
     instructions.push(transfer(
         &payer.pubkey(),
         tip_account,
-        sol_to_lamports(tip_amount),
+        sol_str_to_lamports(tip_amount.to_string().as_str()).unwrap_or(0),
     ));
 
     // 获取交易使用的blockhash
@@ -191,7 +191,7 @@ pub async fn build_sell_tip_transaction(
     instructions.push(transfer(
         &payer.pubkey(),
         tip_account,
-        sol_to_lamports(tip_amount),
+        sol_str_to_lamports(tip_amount.to_string().as_str()).unwrap_or(0),
     ));
 
     // 获取地址查找表账户