diff --git a/Cargo.toml b/Cargo.toml
index 80be93c..a1aa8c5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ckb-sdk"
-version = "3.4.0"
+version = "3.4.1"
 authors = [ "Linfeng Qian <thewawar@gmail.com>", "Nervos Core Dev <dev@nervos.org>" ]
 edition = "2018"
 license = "MIT"
diff --git a/README.md b/README.md
index 8c03ae0..a574a1e 100644
--- a/README.md
+++ b/README.md
@@ -15,7 +15,7 @@ These features allow for seamless interaction with CKB and facilitate the develo
 ```toml
 # Cargo.toml
 [dependencies]
-ckb-sdk = "3.4.0"
+ckb-sdk = "3.4"
 ```
 
 ## Build