diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index fdd20ff..991fda9 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -67,7 +67,7 @@ jobs:
     steps:
       - uses: actions/checkout@v3
       - name: Install rust
-        run: rustup update 1.64.0 && rustup default 1.64.0
+        run: rustup update 1.65.0 && rustup default 1.65.0
       - name: Build
         run: cargo build
 
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 662490a..8754c71 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,21 @@
 
 --------------------------------------------------------------------------------
 
+## 0.21.0 (2023/08/12)
+
+### Breaking changes
+
+* Updated `gimli`, `object`, and `fallible-iterator` dependencies.
+
+### Changed
+
+* The minimum supported rust version is 1.65.0.
+
+* Store boxed slices instead of `Vec` objects in `Context`.
+  [#278](https://github.com/gimli-rs/addr2line/pull/278)
+
+--------------------------------------------------------------------------------
+
 ## 0.20.0 (2023/04/15)
 
 ### Breaking changes
diff --git a/Cargo.toml b/Cargo.toml
index d8ce5e4..5baaa58 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "addr2line"
-version = "0.20.0"
+version = "0.21.0"
 description = "A cross-platform symbolication library written in Rust, using `gimli`"
 documentation = "https://docs.rs/addr2line"
 exclude = ["/benches/*", "/fixtures/*", ".github"]
@@ -10,13 +10,13 @@ license = "Apache-2.0 OR MIT"
 readme = "./README.md"
 repository = "https://github.com/gimli-rs/addr2line"
 edition = "2018"
-rust-version = "1.64"
+rust-version = "1.65"
 
 [dependencies]
-gimli = { version = "0.27.2", default-features = false, features = ["read"] }
-fallible-iterator = { version = "0.2", default-features = false, optional = true }
+gimli = { version = "0.28.0", default-features = false, features = ["read"] }
+fallible-iterator = { version = "0.3.0", default-features = false, optional = true }
 memmap2 = { version = "0.5.5", optional = true }
-object = { version = "0.31.0", default-features = false, features = ["read"], optional = true }
+object = { version = "0.32.0", default-features = false, features = ["read"], optional = true }
 smallvec = { version = "1", default-features = false, optional = true }
 rustc-demangle = { version = "0.1", optional = true }
 cpp_demangle = { version = "0.4", default-features = false, features = ["alloc"], optional = true }