diff --git a/CHANGELOG.md b/CHANGELOG.md
index 6826998..f0a112b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,8 @@ and this project adheres to Rust's notion of
 to 0.3.0 are beta releases.
 
 ## [Unreleased]
+
+## [0.4.0] - 2023-04-09
 ### Changed
 - MSRV is now 1.65.0.
 - The YubiKey PIV PIN and touch caches are now preserved across processes in
diff --git a/Cargo.lock b/Cargo.lock
index 016dac3..9c4b45c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -50,7 +50,7 @@ dependencies = [
 
 [[package]]
 name = "age-plugin-yubikey"
-version = "0.3.3"
+version = "0.4.0"
 dependencies = [
  "age-core",
  "age-plugin",
diff --git a/Cargo.toml b/Cargo.toml
index 84e0f83..95067e5 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "age-plugin-yubikey"
 description = "YubiKey plugin for age clients"
-version = "0.3.3"
+version = "0.4.0"
 authors = ["Jack Grigg <thestr4d@gmail.com>"]
 repository = "https://github.com/str4d/age-plugin-yubikey"
 readme = "README.md"