diff --git a/CHANGELOG.md b/CHANGELOG.md
index 792222c9..7aa9faeb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+
+## [0.20.0] - 2024-04-12
+
 ### Added
 
 - `libcnb`:
@@ -276,7 +279,8 @@ version number. See the changelog below for other changes.
 
 - Remove support for legacy BOM. Remove `Launch::bom`, `Build::bom`, `bom::Bom`, `bom::Entry`. ([#489](https://github.com/heroku/libcnb.rs/pull/489))
 
-[unreleased]: https://github.com/heroku/libcnb.rs/compare/v0.19.0...HEAD
+[unreleased]: https://github.com/heroku/libcnb.rs/compare/v0.20.0...HEAD
+[0.20.0]: https://github.com/heroku/libcnb.rs/compare/v0.19.0...v0.20.0
 [0.19.0]: https://github.com/heroku/libcnb.rs/compare/v0.18.0...v0.19.0
 [0.18.0]: https://github.com/heroku/libcnb.rs/compare/v0.17.0...v0.18.0
 [0.17.0]: https://github.com/heroku/libcnb.rs/compare/v0.16.0...v0.17.0
diff --git a/Cargo.toml b/Cargo.toml
index a56220cf..f5db376d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -18,7 +18,7 @@ members = [
 ]
 
 [workspace.package]
-version = "0.19.0"
+version = "0.20.0"
 rust-version = "1.76"
 edition = "2021"
 license = "BSD-3-Clause"
@@ -38,10 +38,10 @@ missing_errors_doc = "allow"
 module_name_repetitions = "allow"
 
 [workspace.dependencies]
-libcnb = { version = "=0.19.0", path = "libcnb" }
-libcnb-common = { version = "=0.19.0", path = "libcnb-common" }
-libcnb-data = { version = "=0.19.0", path = "libcnb-data" }
-libcnb-package = { version = "=0.19.0", path = "libcnb-package" }
-libcnb-proc-macros = { version = "=0.19.0", path = "libcnb-proc-macros" }
-libcnb-test = { version = "=0.19.0", path = "libcnb-test" }
-toml = { version = "0.8.10" }
+libcnb = { version = "=0.20.0", path = "libcnb" }
+libcnb-common = { version = "=0.20.0", path = "libcnb-common" }
+libcnb-data = { version = "=0.20.0", path = "libcnb-data" }
+libcnb-package = { version = "=0.20.0", path = "libcnb-package" }
+libcnb-proc-macros = { version = "=0.20.0", path = "libcnb-proc-macros" }
+libcnb-test = { version = "=0.20.0", path = "libcnb-test" }
+toml = { version = "0.8.12" }
diff --git a/examples/execd/Cargo.toml b/examples/execd/Cargo.toml
index 09759239..bcac5001 100644
--- a/examples/execd/Cargo.toml
+++ b/examples/execd/Cargo.toml
@@ -7,8 +7,8 @@ rust-version.workspace = true
 workspace = true
 
 [dependencies]
+fastrand = "2.0.2"
 libcnb.workspace = true
-fastrand = "2.0.1"
 
 [dev-dependencies]
 libcnb-test.workspace = true
diff --git a/libcnb-cargo/Cargo.toml b/libcnb-cargo/Cargo.toml
index 611a6ef2..dc2df6d3 100644
--- a/libcnb-cargo/Cargo.toml
+++ b/libcnb-cargo/Cargo.toml
@@ -19,7 +19,7 @@ path = "src/main.rs"
 workspace = true
 
 [dependencies]
-clap = { version = "4.5.1", default-features = false, features = [
+clap = { version = "4.5.4", default-features = false, features = [
   "derive",
   "error-context",
   "help",
@@ -29,8 +29,8 @@ clap = { version = "4.5.1", default-features = false, features = [
 libcnb-data.workspace = true
 libcnb-package.workspace = true
 pathdiff = "0.2.1"
-thiserror = "1.0.57"
+thiserror = "1.0.58"
 
 [dev-dependencies]
-tempfile = "3.10.0"
 libcnb-common.workspace = true
+tempfile = "3.10.1"
diff --git a/libcnb-common/Cargo.toml b/libcnb-common/Cargo.toml
index dd5f4949..bbfae22f 100644
--- a/libcnb-common/Cargo.toml
+++ b/libcnb-common/Cargo.toml
@@ -15,5 +15,5 @@ workspace = true
 
 [dependencies]
 serde = { version = "1.0.197", features = ["derive"] }
-thiserror = "1.0.57"
+thiserror = "1.0.58"
 toml.workspace = true
diff --git a/libcnb-data/Cargo.toml b/libcnb-data/Cargo.toml
index 2f90528a..503026d9 100644
--- a/libcnb-data/Cargo.toml
+++ b/libcnb-data/Cargo.toml
@@ -18,7 +18,7 @@ workspace = true
 fancy-regex = { version = "0.13.0", default-features = false, features = ["std"] }
 libcnb-proc-macros.workspace = true
 serde = { version = "1.0.197", features = ["derive"] }
-thiserror = "1.0.57"
+thiserror = "1.0.58"
 toml.workspace = true
 uriparse = "0.6.4"
 
diff --git a/libcnb-data/src/buildpack/api.rs b/libcnb-data/src/buildpack/api.rs
index 390850af..9d5a3cc4 100644
--- a/libcnb-data/src/buildpack/api.rs
+++ b/libcnb-data/src/buildpack/api.rs
@@ -1,5 +1,4 @@
 use serde::Deserialize;
-use std::convert::TryFrom;
 use std::fmt;
 use std::fmt::{Display, Formatter};
 
diff --git a/libcnb-data/src/buildpack/mod.rs b/libcnb-data/src/buildpack/mod.rs
index 28845bf6..c65090ed 100644
--- a/libcnb-data/src/buildpack/mod.rs
+++ b/libcnb-data/src/buildpack/mod.rs
@@ -232,7 +232,6 @@ pub struct Group {
 #[cfg(test)]
 mod tests {
     use super::*;
-    use crate::sbom::SbomFormat;
 
     #[test]
     #[allow(clippy::too_many_lines)]
diff --git a/libcnb-data/src/buildpack/stack.rs b/libcnb-data/src/buildpack/stack.rs
index 012d6254..45bb381b 100644
--- a/libcnb-data/src/buildpack/stack.rs
+++ b/libcnb-data/src/buildpack/stack.rs
@@ -53,7 +53,7 @@ id = "*"
             toml::from_str::<Stack>(toml_str),
             Ok(Stack {
                 id: String::from("*"),
-                mixins: vec![],
+                mixins: Vec::new(),
             }),
         );
     }
diff --git a/libcnb-data/src/buildpack/version.rs b/libcnb-data/src/buildpack/version.rs
index 9fa3ad4b..2043cda3 100644
--- a/libcnb-data/src/buildpack/version.rs
+++ b/libcnb-data/src/buildpack/version.rs
@@ -1,5 +1,4 @@
 use serde::Deserialize;
-use std::convert::TryFrom;
 use std::fmt;
 use std::fmt::{Display, Formatter};
 
diff --git a/libcnb-data/src/newtypes.rs b/libcnb-data/src/newtypes.rs
index cf914c18..0b370d22 100644
--- a/libcnb-data/src/newtypes.rs
+++ b/libcnb-data/src/newtypes.rs
@@ -190,7 +190,6 @@ pub(crate) use libcnb_newtype;
 
 #[cfg(test)]
 mod tests {
-    use super::libcnb_newtype;
     use serde_test::{assert_de_tokens, assert_de_tokens_error, Token};
 
     libcnb_newtype!(
diff --git a/libcnb-package/Cargo.toml b/libcnb-package/Cargo.toml
index a18e6a28..250af6e5 100644
--- a/libcnb-package/Cargo.toml
+++ b/libcnb-package/Cargo.toml
@@ -16,11 +16,11 @@ workspace = true
 
 [dependencies]
 cargo_metadata = "0.18.1"
-ignore = "0.4"
-indoc = "2.0.4"
+ignore = "0.4.22"
+indoc = "2.0.5"
 libcnb-common.workspace = true
 libcnb-data.workspace = true
 petgraph = { version = "0.6.4", default-features = false }
-thiserror = "1.0.57"
+thiserror = "1.0.58"
 uriparse = "0.6.4"
-which = "6.0.0"
+which = "6.0.1"
diff --git a/libcnb-proc-macros/Cargo.toml b/libcnb-proc-macros/Cargo.toml
index 2e29d588..9c12c8c1 100644
--- a/libcnb-proc-macros/Cargo.toml
+++ b/libcnb-proc-macros/Cargo.toml
@@ -19,5 +19,5 @@ workspace = true
 [dependencies]
 cargo_metadata = "0.18.1"
 fancy-regex = { version = "0.13.0", default-features = false, features = ["std"] }
-quote = "1.0.35"
-syn = { version = "2.0.50", features = ["full"] }
+quote = "1.0.36"
+syn = { version = "2.0.58", features = ["full"] }
diff --git a/libcnb-test/Cargo.toml b/libcnb-test/Cargo.toml
index f2ceea32..3b786003 100644
--- a/libcnb-test/Cargo.toml
+++ b/libcnb-test/Cargo.toml
@@ -15,15 +15,15 @@ include = ["src/**/*", "LICENSE", "README.md"]
 workspace = true
 
 [dependencies]
-fastrand = "2.0.1"
+fastrand = "2.0.2"
 fs_extra = "1.3.0"
 libcnb-common.workspace = true
 libcnb-data.workspace = true
 libcnb-package.workspace = true
-tempfile = "3.10.0"
-thiserror = "1.0.57"
+tempfile = "3.10.1"
+thiserror = "1.0.58"
 
 [dev-dependencies]
-indoc = "2.0.4"
-ureq = { version = "2.9.6", default-features = false }
+indoc = "2.0.5"
 libcnb.workspace = true
+ureq = { version = "2.9.6", default-features = false }
diff --git a/libcnb-test/tests/integration_test.rs b/libcnb-test/tests/integration_test.rs
index 9fe96f38..52a64f01 100644
--- a/libcnb-test/tests/integration_test.rs
+++ b/libcnb-test/tests/integration_test.rs
@@ -683,7 +683,7 @@ fn address_for_port_when_container_crashed() {
                         .command(["echo 'some stdout'; echo 'some stderr' >&2; exit 1"])
                         .expose_port(TEST_PORT),
                     |container| {
-                        container_name = container.container_name.clone();
+                        container_name.clone_from(&container.container_name);
                         // Wait for the container to actually exit, otherwise `address_for_port()` will succeed.
                         thread::sleep(Duration::from_secs(1));
                         let _ = container.address_for_port(TEST_PORT);
diff --git a/libcnb/Cargo.toml b/libcnb/Cargo.toml
index 053afe86..9eb6ee4a 100644
--- a/libcnb/Cargo.toml
+++ b/libcnb/Cargo.toml
@@ -18,7 +18,7 @@ workspace = true
 trace = ["dep:opentelemetry", "dep:opentelemetry_sdk", "dep:opentelemetry-stdout"]
 
 [dependencies]
-anyhow = { version = "1.0.80", optional = true }
+anyhow = { version = "1.0.82", optional = true }
 cyclonedx-bom = { version = "0.5.0", optional = true }
 libcnb-common.workspace = true
 libcnb-data.workspace = true
@@ -27,9 +27,9 @@ opentelemetry = { version = "0.21.0", optional = true }
 opentelemetry_sdk = { version = "0.21.2", optional = true }
 opentelemetry-stdout = { version = "0.2.0", optional = true, features = ["trace"] }
 serde = { version = "1.0.197", features = ["derive"] }
-thiserror = "1.0.57"
+thiserror = "1.0.58"
 toml.workspace = true
 
 [dev-dependencies]
-tempfile = "3.10.0"
-serde_json = "1.0.114"
+serde_json = "1.0.115"
+tempfile = "3.10.1"
diff --git a/libcnb/src/layer/handling.rs b/libcnb/src/layer/handling.rs
index fc7f2515..39538d43 100644
--- a/libcnb/src/layer/handling.rs
+++ b/libcnb/src/layer/handling.rs
@@ -462,14 +462,12 @@ fn read_layer<M: DeserializeOwned, P: AsRef<Path>>(
 #[cfg(test)]
 mod tests {
     use super::*;
-    use crate::data::layer_content_metadata::{LayerContentMetadata, LayerTypes};
+    use crate::data::layer_content_metadata::LayerTypes;
     use crate::data::layer_name;
-    use crate::generic::GenericMetadata;
     use crate::layer_env::{ModificationBehavior, Scope};
     use crate::read_toml_file;
     use serde::Deserialize;
     use std::ffi::OsString;
-    use std::fs;
 
     use tempfile::tempdir;
 
diff --git a/libcnb/src/platform.rs b/libcnb/src/platform.rs
index 378082b4..21567ff4 100644
--- a/libcnb/src/platform.rs
+++ b/libcnb/src/platform.rs
@@ -65,7 +65,6 @@ pub(crate) fn read_platform_env(platform_dir: impl AsRef<Path>) -> std::io::Resu
 mod tests {
     use super::*;
     use std::ffi::OsString;
-    use std::fs;
 
     #[test]
     fn read_platform_env_reads_correct_env_vars() {
diff --git a/libcnb/src/target.rs b/libcnb/src/target.rs
index 0cc0cbf3..0d102aa6 100644
--- a/libcnb/src/target.rs
+++ b/libcnb/src/target.rs
@@ -12,7 +12,6 @@ pub struct Target {
     /// `amd64` or `arm64`.
     ///
     /// CNB `lifecycle` sources this value from the build OCI image's [`architecture` property](https://github.com/opencontainers/image-spec/blob/main/config.md#properties).
-    /// ``
     pub arch: String,
     /// The variant of the specified CPU architecture.
     ///
@@ -29,7 +28,7 @@ pub struct Target {
     pub distro_name: Option<String>,
     /// The version of the operating system distribution.
     ///
-    /// For example: `18.02` or `3.19`.
+    /// For example: `22.04` or `3.19`.
     ///
     /// CNB `lifecycle` sources this value from the build OCI image's `io.buildpacks.base.distro.version` label.
     pub distro_version: Option<String>,
diff --git a/libcnb/src/tracing.rs b/libcnb/src/tracing.rs
index 2d0eae80..6f66f76e 100644
--- a/libcnb/src/tracing.rs
+++ b/libcnb/src/tracing.rs
@@ -104,7 +104,7 @@ impl BuildpackTrace {
     }
     /// Add a named event to the underlying span.
     pub(crate) fn add_event(&mut self, name: &'static str) {
-        self.span.add_event(name, vec![]);
+        self.span.add_event(name, Vec::new());
     }
 }
 
@@ -139,8 +139,8 @@ mod tests {
             homepage: None,
             clear_env: false,
             description: None,
-            keywords: vec![],
-            licenses: vec![],
+            keywords: Vec::new(),
+            licenses: Vec::new(),
             sbom_formats: HashSet::new(),
         };
         let telemetry_path = "/tmp/libcnb-telemetry/company_com_foo-bar.jsonl";
diff --git a/libherokubuildpack/Cargo.toml b/libherokubuildpack/Cargo.toml
index f178aae2..b8343c75 100644
--- a/libherokubuildpack/Cargo.toml
+++ b/libherokubuildpack/Cargo.toml
@@ -43,11 +43,11 @@ pathdiff = { version = "0.2.1", optional = true }
 sha2 = { version = "0.10.8", optional = true }
 tar = { version = "0.4.40", default-features = false, optional = true }
 termcolor = { version = "1.4.1", optional = true }
-thiserror = { version = "1.0.57", optional = true }
+thiserror = { version = "1.0.58", optional = true }
 toml = { workspace = true, optional = true }
 ureq = { version = "2.9.6", default-features = false, features = ["tls"], optional = true }
 
 [dev-dependencies]
-indoc = "2.0.4"
+indoc = "2.0.5"
 libcnb-test = { workspace = true }
-tempfile = "3.10.0"
+tempfile = "3.10.1"
diff --git a/libherokubuildpack/src/buildpack_output/util.rs b/libherokubuildpack/src/buildpack_output/util.rs
index ba8154d3..8a147846 100644
--- a/libherokubuildpack/src/buildpack_output/util.rs
+++ b/libherokubuildpack/src/buildpack_output/util.rs
@@ -160,7 +160,7 @@ mod test {
     fn test_paragraph_inspect_write() {
         use std::io::Write;
 
-        let buffer: Vec<u8> = vec![];
+        let buffer: Vec<u8> = Vec::new();
         let mut inspect_write = ParagraphInspectWrite::new(buffer);
         assert!(!inspect_write.was_paragraph);
 
diff --git a/libherokubuildpack/src/fs.rs b/libherokubuildpack/src/fs.rs
index ada992cb..1a2bcf2f 100644
--- a/libherokubuildpack/src/fs.rs
+++ b/libherokubuildpack/src/fs.rs
@@ -41,7 +41,6 @@ pub fn move_directory_contents(
 #[cfg(test)]
 mod test {
     use std::collections::HashMap;
-    use std::fs;
     use std::path::PathBuf;
 
     use tempfile::tempdir;