diff --git a/CHANGELOG.md b/CHANGELOG.md
index d18bb54..e3e6abc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - ~5% faster parsing.
 - Fallback to `Rc` when `Arc` isn't available.
 - Bump MSRV to 1.60
+- Bump edition to 2021
 - `Error` variants have changed quite a lot.
 - XML declaration validation was simplified. We no longer check for attributes content.
   Meaning that `version`, `encoding` and `standalone` can contain any value now.
diff --git a/Cargo.toml b/Cargo.toml
index 39d2113..e5a0a77 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -9,7 +9,7 @@ description = "Represent an XML as a read-only tree."
 repository = "https://github.com/RazrFalcon/roxmltree"
 documentation = "https://docs.rs/roxmltree/"
 readme = "README.md"
-edition = "2018"
+edition = "2021"
 rust-version = "1.60"
 
 [workspace]
diff --git a/benches/Cargo.toml b/benches/Cargo.toml
index a46914e..66cd9db 100644
--- a/benches/Cargo.toml
+++ b/benches/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "benchmark"
 version = "0.1.0"
-edition = "2018"
+edition = "2021"
 workspace = ".."
 
 [dependencies]
diff --git a/testing-tools/afl-fuzz/Cargo.toml b/testing-tools/afl-fuzz/Cargo.toml
index fb804cd..0763085 100644
--- a/testing-tools/afl-fuzz/Cargo.toml
+++ b/testing-tools/afl-fuzz/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "afl-fuzz"
 version = "0.1.0"
-edition = "2018"
+edition = "2021"
 
 [dependencies]
 afl = "*"