diff --git a/CHANGELOG.md b/CHANGELOG.md
index ad1af11da7a0..17d87f695550 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,8 @@
 
 ## Unreleased
 
+## 0.4.0
+
 ### Breaking Changes
 
 **`wayland-server` was updated to 0.30:**
diff --git a/Cargo.toml b/Cargo.toml
index ea2d574e2dc3..7557c63032f6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "smithay"
-version = "0.3.0"
+version = "0.4.0"
 authors = ["Victor Berger <victor.berger@m4x.org>", "Drakulix (Victoria Brekenfeld)"]
 license = "MIT"
 description = "Smithay is a library for writing wayland compositors."