diff --git a/Cargo.lock b/Cargo.lock
index 853b2f4481b..d26f3a4bf20 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1,6 +1,6 @@
 [root]
 name = "rustfmt"
-version = "0.3.0"
+version = "0.4.0"
 dependencies = [
  "diff 0.1.9 (registry+https://github.com/rust-lang/crates.io-index)",
  "env_logger 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/Cargo.toml b/Cargo.toml
index 591e60ef239..031f347375f 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 
 name = "rustfmt"
-version = "0.3.0"
+version = "0.4.0"
 authors = ["Nicholas Cameron <ncameron@mozilla.com>", "Marcus Klaas <mail@marcusklaas.nl>", "The Rustfmt contributors"]
 description = "Tool to find and fix Rust formatting issues"
 repository = "https://github.com/rust-lang-nursery/rustfmt"