diff --git a/CHANGELOG.md b/CHANGELOG.md
index f3bf52f..2b5263f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,7 @@ The sections should follow the order `Packaging`, `Added`, `Changed`, `Fixed` an
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
-## [Unreleased]
+## [v0.5.0] - 2023-10-13
 
 ### Changed
 
diff --git a/Cargo.toml b/Cargo.toml
index 0b07bf6..849b43c 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "birdcage"
-version = "0.4.0"
+version = "0.5.0"
 description = "Cross-platform embeddable sandbox"
 authors = ["Phylum, Inc. <engineering@phylum.io>"]
 repository = "https://github.com/phylum-dev/birdcage"