diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3ceb2ef..4cf7bab 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,12 +5,17 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+
+## [0.33.0] 2023-03-16
+
 * Updated [`futures`](https://github.com/rust-lang/futures-rs) from 0.3.26 to 0.3.27 ([#575])
 * Updated [`serde`](https://github.com/serde-rs/serde) from 1.0.152 to 1.0.156 ([#576])
+* Use edition 2021 ([#577])
 
 
 [#575]: https://github.com/vbrandl/hoc/pull/575
 [#576]: https://github.com/vbrandl/hoc/pull/576
+[#577]: https://github.com/vbrandl/hoc/pull/577
 
 
 ## [0.32.0] 2023-03-06
diff --git a/Cargo.lock b/Cargo.lock
index f539fef..7e6720a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -905,7 +905,7 @@ dependencies = [
 
 [[package]]
 name = "hoc"
-version = "0.32.0"
+version = "0.33.0"
 dependencies = [
  "actix-rt",
  "actix-web",
diff --git a/Cargo.toml b/Cargo.toml
index 81e32bb..a259728 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,8 +1,8 @@
 [package]
 name = "hoc"
-version = "0.32.0"
+version = "0.33.0"
 authors = ["Valentin Brandl <vbrandl@riseup.net>"]
-edition = "2018"
+edition = "2021"
 build = "build.rs"
 
 [lib]