diff --git a/CHANGELOG.md b/CHANGELOG.md
index d382121..2403b2f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,12 @@
 # Changelog
 
+## [0.9.0](https://github.com/bihealth/hgvs-rs/compare/v0.8.2...v0.9.0) (2023-06-12)
+
+
+### Features
+
+* express existing thread safety (as most things are immutable) ([#115](https://github.com/bihealth/hgvs-rs/issues/115)) ([0d6f241](https://github.com/bihealth/hgvs-rs/commit/0d6f24177cfafa62796e9b5da069f8d1ca807aad))
+
 ## [0.8.2](https://github.com/bihealth/hgvs-rs/compare/v0.8.1...v0.8.2) (2023-06-08)
 
 
diff --git a/Cargo.toml b/Cargo.toml
index f168510..f3e6930 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "hgvs"
-version = "0.8.2"
+version = "0.9.0"
 edition = "2021"
 authors = ["Manuel Holtgrewe <manuel.holtgrewe@bih-charite.de>"]
 description = "Port of biocommons/hgvs to Rust"