diff --git a/Cargo.toml b/Cargo.toml
index ecec6b9..714111f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "ckb-std"
-version = "0.16.3"
+version = "0.16.4"
 authors = ["Nervos network"]
 edition = "2021"
 license = "MIT"
diff --git a/contracts/Cargo.lock b/contracts/Cargo.lock
index 62c243a..0d9e665 100644
--- a/contracts/Cargo.lock
+++ b/contracts/Cargo.lock
@@ -228,7 +228,7 @@ dependencies = [
 
 [[package]]
 name = "ckb-std"
-version = "0.16.3"
+version = "0.16.4"
 dependencies = [
  "buddy-alloc",
  "cc",
diff --git a/contracts/exec-callee/exec-callee-dbg/Cargo.lock b/contracts/exec-callee/exec-callee-dbg/Cargo.lock
index 4f9a5b0..c427c8d 100644
--- a/contracts/exec-callee/exec-callee-dbg/Cargo.lock
+++ b/contracts/exec-callee/exec-callee-dbg/Cargo.lock
@@ -219,7 +219,7 @@ dependencies = [
 
 [[package]]
 name = "ckb-std"
-version = "0.16.3"
+version = "0.16.4"
 dependencies = [
  "buddy-alloc",
  "cc",