diff --git a/Cargo.toml b/Cargo.toml
index f765cf2..b4e704b 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,6 +3,6 @@ members = ["crates/*"]
 resolver = "2"
 
 [workspace.package]
-version = "0.0.4"
+version = "0.0.5"
 edition = "2021"
 license = "Apache-2.0"
diff --git a/crates/wavekat-core/CHANGELOG.md b/crates/wavekat-core/CHANGELOG.md
index c94fe7f..5b0662c 100644
--- a/crates/wavekat-core/CHANGELOG.md
+++ b/crates/wavekat-core/CHANGELOG.md
@@ -7,6 +7,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.0.5](https://github.com/wavekat/wavekat-core/compare/v0.0.4...v0.0.5) - 2026-04-06
+
+### Added
+
+- add WAV I/O via optional wav feature ([#11](https://github.com/wavekat/wavekat-core/pull/11))
+
+### Other
+
+- add test coverage via cargo-llvm-cov ([#13](https://github.com/wavekat/wavekat-core/pull/13))
+
 ## [0.0.4](https://github.com/wavekat/wavekat-core/compare/v0.0.3...v0.0.4) - 2026-04-06
 
 ### Added