diff --git a/CHANGELOG.md b/CHANGELOG.md
index ee36b57..19790ec 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased] - yyyy-mm-dd
 
+## [0.4.0] - 2025-07-20
+
 In this release garnix has been replaced with our own binary cache as garnix has shutdown.
 This is a breaking change to your configuration if you previously
 used garnix to download wire.
diff --git a/Cargo.lock b/Cargo.lock
index 82ab40f..eec9efd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3039,7 +3039,7 @@ dependencies = [
 
 [[package]]
 name = "wire"
-version = "1.4.0-dev"
+version = "1.4.0"
 dependencies = [
  "clap",
  "clap-markdown",
@@ -3067,7 +3067,7 @@ dependencies = [
 
 [[package]]
 name = "wire-core"
-version = "1.4.0-dev"
+version = "1.4.0"
 dependencies = [
  "aho-corasick",
  "anyhow",
@@ -3107,7 +3107,7 @@ dependencies = [
 
 [[package]]
 name = "wire-key-agent"
-version = "1.4.0-dev"
+version = "1.4.0"
 dependencies = [
  "anyhow",
  "base64",
@@ -3122,7 +3122,7 @@ dependencies = [
 
 [[package]]
 name = "wire-nix-client"
-version = "1.4.0-dev"
+version = "1.4.0"
 dependencies = [
  "itertools 0.15.0",
  "miette",
diff --git a/Cargo.toml b/Cargo.toml
index fce739e..c80cd70 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,7 +3,7 @@
 members = ["crates/key_agent", "crates/core", "crates/cli", "crates/nix_client"]
 resolver = "2"
 package.edition = "2024"
-package.version = "1.4.0-dev"
+package.version = "1.4.0"
 
 [workspace.metadata.crane]
 name = "wire"
diff --git a/doc/package.json b/doc/package.json
index baa71aa..9ba39d1 100644
--- a/doc/package.json
+++ b/doc/package.json
@@ -1,7 +1,7 @@
 {
   "$schema": "https://json.schemastore.org/package.json",
   "name": "wire-docs",
-  "version": "1.4.0-dev",
+  "version": "1.4.0",
   "type": "module",
   "devDependencies": {
     "vitepress": "^1.6.4",