diff --git a/Cargo.lock b/Cargo.lock
index b5932607128db..c2a839ab662f0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -402,7 +402,7 @@ dependencies = [
  "cargo-test-macro",
  "cargo-test-support",
  "cargo-util",
- "clap 4.2.1",
+ "clap",
  "crates-io",
  "curl",
  "curl-sys",
@@ -691,23 +691,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "clap"
-version = "3.2.20"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "23b71c3ce99b7611011217b366d923f1d0a7e07a92bb2dbf1e84508c673ca3bd"
-dependencies = [
- "atty",
- "bitflags",
- "clap_derive 3.2.18",
- "clap_lex 0.2.2",
- "indexmap",
- "once_cell",
- "strsim",
- "termcolor",
- "textwrap",
-]
-
 [[package]]
 name = "clap"
 version = "4.2.1"
@@ -715,7 +698,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "046ae530c528f252094e4a77886ee1374437744b2bff1497aa898bbddbbb29b3"
 dependencies = [
  "clap_builder",
- "clap_derive 4.2.0",
+ "clap_derive",
  "once_cell",
 ]
 
@@ -728,7 +711,7 @@ dependencies = [
  "anstream",
  "anstyle",
  "bitflags",
- "clap_lex 0.4.1",
+ "clap_lex",
  "once_cell",
  "strsim",
  "terminal_size",
@@ -740,20 +723,7 @@ version = "4.0.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "10861370d2ba66b0f5989f83ebf35db6421713fd92351790e7fdd6c36774c56b"
 dependencies = [
- "clap 4.2.1",
-]
-
-[[package]]
-name = "clap_derive"
-version = "3.2.18"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea0c8bce528c4be4da13ea6fead8965e95b6073585a2f05204bd8f4119f82a65"
-dependencies = [
- "heck",
- "proc-macro-error",
- "proc-macro2",
- "quote",
- "syn 1.0.102",
+ "clap",
 ]
 
 [[package]]
@@ -768,15 +738,6 @@ dependencies = [
  "syn 2.0.8",
 ]
 
-[[package]]
-name = "clap_lex"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5538cd660450ebeb4234cfecf8f2284b844ffc4c50531e66d584ad5b91293613"
-dependencies = [
- "os_str_bytes",
-]
-
 [[package]]
 name = "clap_lex"
 version = "0.4.1"
@@ -787,7 +748,7 @@ checksum = "8a2dd5a6fe8c6e3502f568a6353e5273bbb15193ad9a89e457b9970798efbea1"
 name = "clippy"
 version = "0.1.70"
 dependencies = [
- "clap 4.2.1",
+ "clap",
  "clippy_lints",
  "clippy_utils",
  "compiletest_rs",
@@ -818,7 +779,7 @@ name = "clippy_dev"
 version = "0.0.1"
 dependencies = [
  "aho-corasick",
- "clap 4.2.1",
+ "clap",
  "indoc",
  "itertools",
  "opener",
@@ -2767,7 +2728,7 @@ name = "installer"
 version = "0.0.0"
 dependencies = [
  "anyhow",
- "clap 3.2.20",
+ "clap",
  "flate2",
  "lazy_static",
  "num_cpus",
@@ -2900,7 +2861,7 @@ name = "jsondoclint"
 version = "0.1.0"
 dependencies = [
  "anyhow",
- "clap 4.2.1",
+ "clap",
  "fs-err",
  "rustc-hash",
  "rustdoc-json-types",
@@ -3166,7 +3127,7 @@ dependencies = [
  "ammonia",
  "anyhow",
  "chrono",
- "clap 4.2.1",
+ "clap",
  "clap_complete",
  "elasticlunr-rs",
  "env_logger 0.10.0",
@@ -3552,12 +3513,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "os_str_bytes"
-version = "6.0.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e22443d1643a904602595ba1cd8f7d896afe56d26712531c5ff73a15b2fbf64"
-
 [[package]]
 name = "output_vt100"
 version = "0.1.3"
@@ -3881,30 +3836,6 @@ dependencies = [
  "log",
 ]
 
-[[package]]
-name = "proc-macro-error"
-version = "1.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c"
-dependencies = [
- "proc-macro-error-attr",
- "proc-macro2",
- "quote",
- "syn 1.0.102",
- "version_check",
-]
-
-[[package]]
-name = "proc-macro-error-attr"
-version = "1.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869"
-dependencies = [
- "proc-macro2",
- "quote",
- "version_check",
-]
-
 [[package]]
 name = "proc-macro-hack"
 version = "0.5.19"
@@ -4182,7 +4113,7 @@ dependencies = [
 name = "rustbook"
 version = "0.1.0"
 dependencies = [
- "clap 4.2.1",
+ "clap",
  "env_logger 0.10.0",
  "mdbook",
 ]
@@ -4279,7 +4210,7 @@ name = "rustc-workspace-hack"
 version = "1.0.0"
 dependencies = [
  "bstr 0.2.17",
- "clap 3.2.20",
+ "clap",
  "getrandom",
  "hashbrown 0.12.3",
  "libc",
@@ -5590,7 +5521,7 @@ dependencies = [
  "anyhow",
  "bytecount",
  "cargo_metadata 0.14.0",
- "clap 3.2.20",
+ "clap",
  "derive-new",
  "diff",
  "dirs",
@@ -6249,12 +6180,6 @@ dependencies = [
  "term",
 ]
 
-[[package]]
-name = "textwrap"
-version = "0.15.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1141d4d61095b28419e22cb0bbf02755f5e54e0526f97f1e3d1d160e60885fb"
-
 [[package]]
 name = "thin-vec"
 version = "0.2.12"
diff --git a/src/tools/rust-installer/Cargo.toml b/src/tools/rust-installer/Cargo.toml
index 788e556b0c645..10f59825237df 100644
--- a/src/tools/rust-installer/Cargo.toml
+++ b/src/tools/rust-installer/Cargo.toml
@@ -21,7 +21,7 @@ remove_dir_all = "0.5"
 
 [dependencies.clap]
 features = ["derive"]
-version = "3.1"
+version = "4.2.1"
 
 [target."cfg(windows)".dependencies]
 lazy_static = "1"
diff --git a/src/tools/rustc-workspace-hack/Cargo.toml b/src/tools/rustc-workspace-hack/Cargo.toml
index e088ffbbe7731..6e9e9340fc83e 100644
--- a/src/tools/rustc-workspace-hack/Cargo.toml
+++ b/src/tools/rustc-workspace-hack/Cargo.toml
@@ -73,7 +73,7 @@ features = [
 
 [dependencies]
 bstr = { version = "0.2.17", features = ["default"] }
-clap = { version = "3.1.1", features = ["derive", "clap_derive"]}
+clap = { version = "4.2.1", features = ["derive"] }
 curl-sys = { version = "0.4.13", features = ["http2", "libnghttp2-sys"], optional = true }
 # Ensure `extra_traits` of libc, which is used transitively by Cargo.
 libc = { version = "0.2", features = ["extra_traits"] }
@@ -91,7 +91,7 @@ rand = { version = "0.8.5" }
 
 # Ensure features of `hashbrown`, `smallvec`, and `once_cell`,
 # which are used transitively by Cargo (via `gix`).
-hashbrown = { version = "0.12.3", default-features = false, features = ["inline-more"] }
+hashbrown = { version = "0.12.3", default-features = false, features = ["inline-more", "raw"] }
 once_cell = { version = "1.16.0", default-features = false, features = ["unstable"] }
 smallvec = { version = "1.10.0", features = ["write"] }
 
diff --git a/src/tools/rustfmt/Cargo.toml b/src/tools/rustfmt/Cargo.toml
index 87ce59d0217e8..3d9adb7605fc9 100644
--- a/src/tools/rustfmt/Cargo.toml
+++ b/src/tools/rustfmt/Cargo.toml
@@ -37,7 +37,7 @@ annotate-snippets = { version = "0.9", features = ["color"] }
 anyhow = "1.0"
 bytecount = "0.6"
 cargo_metadata = "0.14"
-clap = { version = "3.1", features = ["derive"] }
+clap = { version = "4.2.1", features = ["derive"] }
 derive-new = "0.5"
 diff = "0.1"
 dirs = "4.0"
diff --git a/src/tools/rustfmt/src/cargo-fmt/main.rs b/src/tools/rustfmt/src/cargo-fmt/main.rs
index 2b714b68df00e..a106181ec7eb6 100644
--- a/src/tools/rustfmt/src/cargo-fmt/main.rs
+++ b/src/tools/rustfmt/src/cargo-fmt/main.rs
@@ -14,7 +14,7 @@ use std::path::{Path, PathBuf};
 use std::process::Command;
 use std::str;
 
-use clap::{AppSettings, CommandFactory, Parser};
+use clap::{CommandFactory, Parser};
 
 #[path = "test/mod.rs"]
 #[cfg(test)]
@@ -22,7 +22,7 @@ mod cargo_fmt_tests;
 
 #[derive(Parser)]
 #[clap(
-    global_setting(AppSettings::NoAutoVersion),
+    disable_version_flag = true,
     bin_name = "cargo fmt",
     about = "This utility formats all bin and lib files of \
              the current crate using rustfmt."
@@ -45,7 +45,7 @@ pub struct Opts {
         short = 'p',
         long = "package",
         value_name = "package",
-        multiple_values = true
+        num_args = 1..
     )]
     packages: Vec<String>,