diff --git a/CHANGELOG.md b/CHANGELOG.md
index 0a7acb5..47d1bad 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 
-## Unreleased
+## 0.4.0 - 2024-02-06
 
 ### Added
 
diff --git a/app/Version.hs b/app/Version.hs
index a3852b5..55189ed 100644
--- a/app/Version.hs
+++ b/app/Version.hs
@@ -3,4 +3,4 @@ module Version (currentVersion) where
 -- Just updating this manually for now. Note that changing this string doesn't
 -- actually *do* anything -- it's just what's shown to the user in `--help`.
 currentVersion :: String
-currentVersion = "0.4.0-dev"
+currentVersion = "0.4.0"
diff --git a/package.yaml b/package.yaml
index e5a4ef9..cbe740e 100644
--- a/package.yaml
+++ b/package.yaml
@@ -1,5 +1,5 @@
 name:                tvmv
-version:             0.3.0
+version:             0.4.0
 github:              "keithfancher/tvmv"
 license:             BSD3
 author:              "Keith Fancher"
diff --git a/tvmv.cabal b/tvmv.cabal
index 8913063..b1e8b40 100644
--- a/tvmv.cabal
+++ b/tvmv.cabal
@@ -5,7 +5,7 @@ cabal-version: 1.12
 -- see: https://github.com/sol/hpack
 
 name:           tvmv
-version:        0.3.0
+version:        0.4.0
 description:    Please see the README on GitHub at <https://github.com/keithfancher/tvmv#readme>
 homepage:       https://github.com/keithfancher/tvmv#readme
 bug-reports:    https://github.com/keithfancher/tvmv/issues