diff --git a/Cargo.lock b/Cargo.lock
index 618e1a7..5abe0e5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1600,7 +1600,7 @@ dependencies = [
 
 [[package]]
 name = "wasi-libc-trampoline-bindgen"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "heck 0.3.3",
  "structopt",
@@ -1609,7 +1609,7 @@ dependencies = [
 
 [[package]]
 name = "wasi-vfs"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "cc",
  "wasi",
@@ -1618,7 +1618,7 @@ dependencies = [
 
 [[package]]
 name = "wasi-vfs-cli"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "anyhow",
  "structopt",
diff --git a/Cargo.toml b/Cargo.toml
index 1f4ac85..0418348 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasi-vfs"
-version = "0.3.0"
+version = "0.4.0"
 edition = "2021"
 authors = ["Yuta Saito <kateinoigakukun@gmail.com>"]
 license = "Apache-2.0 WITH LLVM-exception"
diff --git a/Formula/wasi-vfs.rb b/Formula/wasi-vfs.rb
index 8ffaac2..5f06a33 100644
--- a/Formula/wasi-vfs.rb
+++ b/Formula/wasi-vfs.rb
@@ -1,7 +1,7 @@
 class WasiVfs < Formula
   desc "A virtual filesystem layer for WASI."
   homepage "https://github.com/kateinoigakukun/wasi-vfs"
-  url "https://github.com/kateinoigakukun/wasi-vfs.git", tag: "v0.3.0", using: :git
+  url "https://github.com/kateinoigakukun/wasi-vfs.git", tag: "v0.4.0", using: :git
   head "https://github.com/kateinoigakukun/wasi-vfs.git", branch: "main"
   license "Apache-2.0" => { with: "LLVM-exception" }
 
diff --git a/README.md b/README.md
index b957008..e1b663f 100644
--- a/README.md
+++ b/README.md
@@ -24,7 +24,7 @@ This project provides a language and host-agnostic virtual filesystem layer for
 A typical installation from the release binaries might look like the following:
 
 ```console
-$ export WASI_VFS_VERSION=0.3.0
+$ export WASI_VFS_VERSION=0.4.0
 
 # For x86_64 Linux host machine
 $ curl -LO "https://github.com/kateinoigakukun/wasi-vfs/releases/download/v${WASI_VFS_VERSION}/wasi-vfs-cli-x86_64-unknown-linux-gnu.zip"
diff --git a/crates/wasi-libc-trampoline-bindgen/Cargo.toml b/crates/wasi-libc-trampoline-bindgen/Cargo.toml
index b815637..64873c1 100644
--- a/crates/wasi-libc-trampoline-bindgen/Cargo.toml
+++ b/crates/wasi-libc-trampoline-bindgen/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasi-libc-trampoline-bindgen"
-version = "0.3.0"
+version = "0.4.0"
 edition = "2021"
 
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
diff --git a/crates/wasi-vfs-cli/Cargo.toml b/crates/wasi-vfs-cli/Cargo.toml
index cabf18f..4a3e02b 100644
--- a/crates/wasi-vfs-cli/Cargo.toml
+++ b/crates/wasi-vfs-cli/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "wasi-vfs-cli"
-version = "0.3.0"
+version = "0.4.0"
 edition = "2021"
 
 [[bin]]