diff --git a/Cargo.toml b/Cargo.toml
index e7dea83..9831e9c 100755
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "sol-trade-sdk"
-version = "0.2.6"
+version = "0.2.7"
 edition = "2021"
 authors = ["William <byteblock6@gmail.com>", "sgxiang <sgxiang@gmail.com>", "wei <1415121722@qq.com>"]
 repository = "https://github.com/0xfnzero/sol-trade-sdk"
diff --git a/README.md b/README.md
index c460d57..f8c29e4 100755
--- a/README.md
+++ b/README.md
@@ -31,14 +31,14 @@ Add the dependency to your `Cargo.toml`:
 
 ```toml
 # Add to your Cargo.toml
-sol-trade-sdk = { path = "./sol-trade-sdk", version = "0.2.6" }
+sol-trade-sdk = { path = "./sol-trade-sdk", version = "0.2.7" }
 ```
 
 ### Use crates.io
 
 ```toml
 # Add to your Cargo.toml
-sol-trade-sdk = "0.2.6"
+sol-trade-sdk = "0.2.7"
 ```
 
 ## Usage Examples
diff --git a/README_CN.md b/README_CN.md
index 958fc32..ae0d84a 100755
--- a/README_CN.md
+++ b/README_CN.md
@@ -31,14 +31,14 @@ git clone https://github.com/0xfnzero/sol-trade-sdk
 
 ```toml
 # 添加到您的 Cargo.toml
-sol-trade-sdk = { path = "./sol-trade-sdk", version = "0.2.6" }
+sol-trade-sdk = { path = "./sol-trade-sdk", version = "0.2.7" }
 ```
 
 ### 使用 crates.io
 
 ```toml
 # 添加到您的 Cargo.toml
-sol-trade-sdk = "0.2.6"
+sol-trade-sdk = "0.2.7"
 ```
 
 ## 使用示例
diff --git a/src/constants/trade.rs b/src/constants/trade.rs
index 578aeae..1278f57 100644
--- a/src/constants/trade.rs
+++ b/src/constants/trade.rs
@@ -4,6 +4,6 @@ pub mod trade {
     pub const DEFAULT_COMPUTE_UNIT_PRICE: u64 = 500000;
     pub const DEFAULT_BUY_TIP_FEE: f64 = 0.0006;
     pub const DEFAULT_SELL_TIP_FEE: f64 = 0.0001;
-    pub const DEFAULT_RPC_UNIT_LIMIT: u32 = 1000000;
+    pub const DEFAULT_RPC_UNIT_LIMIT: u32 = 78000;
     pub const DEFAULT_RPC_UNIT_PRICE: u64 = 500000;
 }