diff --git a/Cargo.toml b/Cargo.toml
index c4ef75d..8634b04 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "winpty-rs"
-version = "0.3.17-dev"
+version = "0.4.0"
 edition = "2021"
 links = "winpty"
 license = "MIT OR Apache-2.0"
diff --git a/README.md b/README.md
index 8eb02a3..6dc33ce 100644
--- a/README.md
+++ b/README.md
@@ -25,7 +25,7 @@ In order to use Rust in your library/program, you need to add `winpty-rs` to you
 
 ```toml
 [dependencies]
-winpty-rs = "0.3"
+winpty-rs = "0.4"
 ```
 
 In order to enable winpty compatibility, you will need the winpty redistributable binaries available in your PATH and LIB.