diff --git a/.github/workflows/cache-zigs.yml b/.github/workflows/cache-zigs.yml
index 946419c4..d9c2c003 100644
--- a/.github/workflows/cache-zigs.yml
+++ b/.github/workflows/cache-zigs.yml
@@ -11,7 +11,7 @@ jobs:
     outputs:
       matrix-json: ${{ steps.set-matrix.outputs.matrix }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           repository: rinse-repeat/zig-gh-helper
           path: zig-helper      
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9ca9563a..88ff5b00 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -24,27 +24,30 @@ jobs:
           # MacOS
           - runs-on: macos-latest
     steps:
-      - uses: actions/checkout@v3
-      - uses: dtolnay/rust-toolchain@stable
+      - uses: actions/checkout@v4
+      - uses: actions-rust-lang/setup-rust-toolchain@v1
+        with:
+          toolchain: 1.76.0
       - run: cargo test -- --skip args::args_tests::update_config_test_color_choice::case_4 --skip test_package
 
-# TODO: Address clippy
-#  clippy:
-#    name: Check that clippy is happy
-#    runs-on: ubuntu-latest
-#    steps:
-#    - uses: actions/checkout@v3
-#    - uses: dtolnay/rust-toolchain@1.73.0
-#      with:
-#        components: clippy
-#    - run: cargo clippy --target x86_64-unknown-linux-gnu --all-features
+  clippy:
+    name: Check that clippy is happy
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions-rust-lang/setup-rust-toolchain@v1
+      with:
+        toolchain: 1.76.0
+        components: clippy
+    - run: cargo clippy --workspace --all-features --all-targets --no-deps -- -D warnings
 
   rustfmt:
     name: Check formatting
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
-    - uses: dtolnay/rust-toolchain@stable
+    - uses: actions/checkout@v4
+    - uses: actions-rust-lang/setup-rust-toolchain@v1
       with:
+        toolchain: 1.76.0
         components: rustfmt
     - run: cargo fmt --all -- --check
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 9b994218..126059aa 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -19,7 +19,7 @@ jobs:
     outputs:
       matrix-json: ${{ steps.set-matrix.outputs.matrix }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
         with:
           path: release-repo
       - id: set-matrix
diff --git a/Cargo.lock b/Cargo.lock
index 52d5c964..60185afa 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -365,7 +365,7 @@ dependencies = [
  "cargo-geiger-serde",
  "cargo-platform",
  "cargo-util",
- "cargo_metadata 0.18.1",
+ "cargo_metadata",
  "colored",
  "console",
  "fs_extra",
@@ -442,20 +442,6 @@ dependencies = [
  "thiserror",
 ]
 
-[[package]]
-name = "cargo_metadata"
-version = "0.18.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2d886547e41f740c616ae73108f6eb70afe6d940c7bc697cb30f13daec073037"
-dependencies = [
- "camino",
- "cargo-platform",
- "semver",
- "serde",
- "serde_json",
- "thiserror",
-]
-
 [[package]]
 name = "cc"
 version = "1.0.83"
@@ -2043,7 +2029,7 @@ version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a857d4b6450fbc2b85c03684b2beae51916a5a90e2fb5f9c2b8acc920ad29e49"
 dependencies = [
- "cargo_metadata 0.15.4",
+ "cargo_metadata",
  "cfg-expr",
  "petgraph",
  "semver",
@@ -2252,6 +2238,12 @@ dependencies = [
  "winapi",
 ]
 
+[[package]]
+name = "num-conv"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "51d515d32fb182ee37cda2ccdcb92950d6a3c2893aa280e540671c2cd0f3b1d9"
+
 [[package]]
 name = "num-traits"
 version = "0.2.17"
@@ -3171,13 +3163,14 @@ dependencies = [
 
 [[package]]
 name = "time"
-version = "0.3.30"
+version = "0.3.36"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c4a34ab300f2dee6e562c10a046fc05e358b29f9bf92277f30c3c8d82275f6f5"
+checksum = "5dfd88e563464686c916c7e46e623e520ddc6d79fa6641390f2e3fa86e83e885"
 dependencies = [
  "deranged",
  "itoa",
  "libc",
+ "num-conv",
  "num_threads",
  "powerfmt",
  "serde",
@@ -3193,10 +3186,11 @@ checksum = "ef927ca75afb808a4d64dd374f00a2adf8d0fcff8e7b184af886c3c87ec4a3f3"
 
 [[package]]
 name = "time-macros"
-version = "0.2.15"
+version = "0.2.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4ad70d68dba9e1f8aceda7aa6711965dfec1cac869f311a51bd08b3a2ccbce20"
+checksum = "3f252a68540fde3a3877aeea552b832b40ab9a69e318efd078774a01ddee1ccf"
 dependencies = [
+ "num-conv",
  "time-core",
 ]
 
diff --git a/cargo-geiger-serde/src/lib.rs b/cargo-geiger-serde/src/lib.rs
index 4dd8ec01..2d904259 100644
--- a/cargo-geiger-serde/src/lib.rs
+++ b/cargo-geiger-serde/src/lib.rs
@@ -4,7 +4,6 @@
 //! This crate provides definitions to serialize the unsafety report.
 
 #![forbid(unsafe_code)]
-#![deny(warnings)]
 
 mod package_id;
 mod report;
diff --git a/cargo-geiger/Cargo.toml b/cargo-geiger/Cargo.toml
index 7c3b11fc..2311e098 100644
--- a/cargo-geiger/Cargo.toml
+++ b/cargo-geiger/Cargo.toml
@@ -17,7 +17,7 @@ maintenance = { status = "experimental" }
 anyhow = "1.0.70"
 cargo = "0.75.1"
 cargo-geiger-serde = { path = "../cargo-geiger-serde", version = "0.2.3" }
-cargo_metadata = "0.18.1"
+cargo_metadata = "0.15.4"
 cargo-platform = "0.1.2"
 colored = "2.0.0"
 console = "0.15.5"
diff --git a/cargo-geiger/src/args.rs b/cargo-geiger/src/args.rs
index 5709e816..9eb22d3a 100644
--- a/cargo-geiger/src/args.rs
+++ b/cargo-geiger/src/args.rs
@@ -241,19 +241,14 @@ pub struct ReadmeArgs {
     pub update_readme: bool,
 }
 
-#[derive(Debug, Eq, PartialEq)]
+#[derive(Debug, Default, Eq, PartialEq)]
 pub enum Verbosity {
+    #[default]
     Verbose,
     Normal,
     Quiet,
 }
 
-impl Default for Verbosity {
-    fn default() -> Self {
-        Verbose
-    }
-}
-
 fn parse_features(raw_features: Option<String>) -> Vec<String> {
     raw_features
         .as_ref()
diff --git a/cargo-geiger/src/format.rs b/cargo-geiger/src/format.rs
index c35f4861..1a8ab028 100644
--- a/cargo-geiger/src/format.rs
+++ b/cargo-geiger/src/format.rs
@@ -11,19 +11,14 @@ use std::fmt;
 use std::str::{self, FromStr};
 use strum_macros::EnumIter;
 
-#[derive(Clone, Copy, Debug, Eq, PartialEq)]
+#[derive(Clone, Copy, Default, Debug, Eq, PartialEq)]
 pub enum Charset {
+    #[default]
     Ascii,
     GitHubMarkdown,
     Utf8,
 }
 
-impl Default for Charset {
-    fn default() -> Self {
-        Charset::Ascii
-    }
-}
-
 #[derive(Debug, Eq, PartialEq)]
 pub enum Chunk {
     License,
diff --git a/cargo-geiger/src/format/print_config.rs b/cargo-geiger/src/format/print_config.rs
index ca9196c5..671e767e 100644
--- a/cargo-geiger/src/format/print_config.rs
+++ b/cargo-geiger/src/format/print_config.rs
@@ -15,21 +15,16 @@ pub enum Prefix {
     None,
 }
 
-#[derive(Clone, Copy, Debug, EnumString, Eq, PartialEq)]
+#[derive(Clone, Copy, Debug, Default, EnumString, Eq, PartialEq)]
 pub enum OutputFormat {
     Ascii,
     Json,
     GitHubMarkdown,
     Ratio,
+    #[default]
     Utf8,
 }
 
-impl Default for OutputFormat {
-    fn default() -> Self {
-        OutputFormat::Utf8
-    }
-}
-
 #[derive(Debug, Eq, PartialEq)]
 pub struct PrintConfig {
     /// Don't truncate dependencies that have already been displayed.
diff --git a/cargo-geiger/src/lib.rs b/cargo-geiger/src/lib.rs
index cc081460..d220ad9a 100644
--- a/cargo-geiger/src/lib.rs
+++ b/cargo-geiger/src/lib.rs
@@ -5,7 +5,6 @@
 #![deny(clippy::cargo)]
 #![deny(clippy::doc_markdown)]
 #![forbid(unsafe_code)]
-#![deny(warnings)]
 
 /// Argument parsing
 pub mod args;
diff --git a/cargo-geiger/src/main.rs b/cargo-geiger/src/main.rs
index ab8e8acc..f6443a41 100644
--- a/cargo-geiger/src/main.rs
+++ b/cargo-geiger/src/main.rs
@@ -4,7 +4,6 @@
 #![deny(clippy::cargo)]
 #![deny(clippy::doc_markdown)]
 #![forbid(unsafe_code)]
-#![deny(warnings)]
 
 extern crate cargo;
 extern crate colored;
diff --git a/cargo-geiger/src/readme.rs b/cargo-geiger/src/readme.rs
index 9eba386e..87305ddf 100644
--- a/cargo-geiger/src/readme.rs
+++ b/cargo-geiger/src/readme.rs
@@ -123,7 +123,7 @@ fn read_file_contents(path: &Path) -> Result<Vec<String>, Error> {
 
     Ok(buf_reader
         .lines()
-        .filter_map(|l| l.ok())
+        .map_while(Result::ok)
         .collect::<Vec<String>>())
 }
 
diff --git a/cargo-geiger/src/scan.rs b/cargo-geiger/src/scan.rs
index b9770d70..567eeaa1 100644
--- a/cargo-geiger/src/scan.rs
+++ b/cargo-geiger/src/scan.rs
@@ -184,11 +184,11 @@ fn list_files_used_but_not_scanned(
 
     rs_files_used
         .iter()
-        .cloned()
         .filter(|p| {
             !scanned_files.contains(p)
-                && !geiger_context.ignored_paths.contains(p)
+                && !geiger_context.ignored_paths.contains(*p)
         })
+        .cloned()
         .collect()
 }
 
@@ -357,7 +357,7 @@ mod scan_tests {
             &mut visited,
         );
 
-        assert_eq!(visited, vec![dependency_index].iter().cloned().collect());
+        assert_eq!(visited, [dependency_index].iter().cloned().collect());
         assert_eq!(
             package_info.dependencies.len(),
             expected_package_info_dependency_length
@@ -446,7 +446,7 @@ mod scan_tests {
             input_rs_path_to_metrics_vec.iter().cloned().collect();
 
         let geiger_context = GeigerContext {
-            package_id_to_metrics: vec![(
+            package_id_to_metrics: [(
                 package_id,
                 PackageMetrics { rs_path_to_metrics },
             )]
diff --git a/cargo-geiger/src/scan/find.rs b/cargo-geiger/src/scan/find.rs
index 2bf7b385..d7389041 100644
--- a/cargo-geiger/src/scan/find.rs
+++ b/cargo-geiger/src/scan/find.rs
@@ -2,7 +2,7 @@ use crate::format::print_config::PrintConfig;
 use crate::mapping::{CargoMetadataParameters, GetPackageRoot};
 use crate::scan::rs_file::{
     into_is_entry_point_and_path_buf, into_rs_code_file, into_target_kind,
-    is_file_with_ext, RsFile, RsFileMetricsWrapper,
+    is_file_with_ext, RsFile,
 };
 use crate::scan::PackageMetrics;
 
@@ -236,13 +236,11 @@ fn update_package_id_to_metrics_with_rs_file_metrics(
     path_buf: PathBuf,
     rs_file_metrics: RsFileMetrics,
 ) {
-    let package_metrics = package_id_to_metrics
-        .entry(package_id)
-        .or_insert_with(PackageMetrics::default);
+    let package_metrics = package_id_to_metrics.entry(package_id).or_default();
     let wrapper = package_metrics
         .rs_path_to_metrics
         .entry(path_buf)
-        .or_insert_with(RsFileMetricsWrapper::default);
+        .or_default();
     wrapper.metrics = rs_file_metrics;
     wrapper.is_crate_entry_point = is_entry_point;
 }
diff --git a/cargo-geiger/src/scan/rs_file.rs b/cargo-geiger/src/scan/rs_file.rs
index 4fc27fca..100870f1 100644
--- a/cargo-geiger/src/scan/rs_file.rs
+++ b/cargo-geiger/src/scan/rs_file.rs
@@ -218,7 +218,7 @@ fn add_dir_entries_to_path_buf_hash_set(
     path_buf_hash_set: &mut HashSet<PathBuf>,
     workspace_root: PathBuf,
 ) -> Result<(), RsResolveError> {
-    for entry in WalkDir::new(&out_dir) {
+    for entry in WalkDir::new(out_dir) {
         let entry = entry.map_err(RsResolveError::Walkdir)?;
         if !is_file_with_ext(&entry, "d") {
             continue;
@@ -423,7 +423,7 @@ mod rs_file_tests {
         let config = Config::default().unwrap();
         let cwd = config.cwd();
 
-        let walk_dir_rust_files = WalkDir::new(&cwd)
+        let walk_dir_rust_files = WalkDir::new(cwd)
             .into_iter()
             .filter_map(|e| e.ok())
             .filter(|e| e.path().to_str().unwrap().ends_with(".rs"));
@@ -432,7 +432,7 @@ mod rs_file_tests {
             assert!(is_file_with_ext(&entry, "rs"));
         }
 
-        let walk_dir_readme_files = WalkDir::new(&cwd)
+        let walk_dir_readme_files = WalkDir::new(cwd)
             .into_iter()
             .filter_map(|e| e.ok())
             .filter(|e| e.path().to_str().unwrap().contains("README"));
diff --git a/cargo-geiger/src/tree/traversal/dependency_node.rs b/cargo-geiger/src/tree/traversal/dependency_node.rs
index 579499c4..c64c377c 100644
--- a/cargo-geiger/src/tree/traversal/dependency_node.rs
+++ b/cargo-geiger/src/tree/traversal/dependency_node.rs
@@ -55,8 +55,8 @@ pub fn walk_dependency_node(
     all_out_text_tree_lines
 }
 
-fn construct_dependency_type_nodes_hashmap<'a>(
-    graph: &'a Graph,
+fn construct_dependency_type_nodes_hashmap(
+    graph: &Graph,
     package: &PackageId,
     print_config: &PrintConfig,
 ) -> HashMap<DependencyKind, Vec<PackageId>> {
diff --git a/cargo-geiger/tests/context/mod.rs b/cargo-geiger/tests/context/mod.rs
index fe54f02c..581e79fe 100644
--- a/cargo-geiger/tests/context/mod.rs
+++ b/cargo-geiger/tests/context/mod.rs
@@ -17,7 +17,7 @@ impl Context {
             content_only: true,
             ..Default::default()
         };
-        fs_extra::dir::copy(&src_path, dir.path(), &copy_options)
+        fs_extra::dir::copy(src_path, dir.path(), &copy_options)
             .expect("Failed to copy tests");
         let path = dir
             .path()
diff --git a/geiger/src/lib.rs b/geiger/src/lib.rs
index 98492bac..9fc0ccf9 100644
--- a/geiger/src/lib.rs
+++ b/geiger/src/lib.rs
@@ -5,7 +5,6 @@
 //! from `cargo`.
 
 #![forbid(unsafe_code)]
-#![deny(warnings)]
 
 pub mod find;
 pub use find::*; // preserve APIs