diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index d2373dd03db..258309b519b 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -557,3 +557,17 @@ jobs:
         run: wasmer run --dir $(pwd) target/wasm32-wasip1/release/rustpython.wasm -- "$(pwd)/extra_tests/snippets/stdlib_random.py"
       - name: run cpython unittest
         run: wasmer run --dir $(pwd) target/wasm32-wasip1/release/rustpython.wasm -- "$(pwd)/Lib/test/test_int.py"
+
+  cargo-shear:
+    name: cargo shear
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+        with:
+          persist-credentials: false
+
+      - uses: cargo-bins/cargo-binstall@1800853f2578f8c34492ec76154caef8e163fbca # v1.17.7
+
+      - run: cargo binstall --no-confirm cargo-shear
+
+      - run: cargo shear
diff --git a/Cargo.lock b/Cargo.lock
index e7d738c7c55..532cb7204b0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3299,7 +3299,6 @@ dependencies = [
  "mt19937",
  "nix 0.30.1",
  "num-complex",
- "num-integer",
  "num-traits",
  "num_enum",
  "oid-registry",
@@ -3342,9 +3341,7 @@ dependencies = [
  "unic-ucd-age",
  "unic-ucd-bidi",
  "unic-ucd-category",
- "unic-ucd-ident",
  "unicode-bidi-mirroring",
- "unicode-casing",
  "unicode_names2 2.0.0",
  "uuid",
  "webpki-roots",
@@ -3358,9 +3355,6 @@ dependencies = [
 [[package]]
 name = "rustpython-venvlauncher"
 version = "0.5.0"
-dependencies = [
- "windows-sys 0.61.2",
-]
 
 [[package]]
 name = "rustpython-vm"
@@ -3424,7 +3418,6 @@ dependencies = [
  "strum",
  "strum_macros",
  "thiserror 2.0.18",
- "thread_local",
  "timsort",
  "uname",
  "unic-ucd-bidi",
@@ -3453,7 +3446,6 @@ version = "0.5.0"
 dependencies = [
  "console_error_panic_hook",
  "js-sys",
- "ruff_python_parser",
  "rustpython-common",
  "rustpython-pylib",
  "rustpython-stdlib",
@@ -3944,15 +3936,6 @@ dependencies = [
  "winapi",
 ]
 
-[[package]]
-name = "thread_local"
-version = "1.1.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f60246a4944f24f6e018aa17cdeffb7818b76356965d03b07d6a9886e8962185"
-dependencies = [
- "cfg-if",
-]
-
 [[package]]
 name = "time"
 version = "0.3.47"
diff --git a/Cargo.toml b/Cargo.toml
index c62ddaf9e6b..8debf3ca321 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -35,7 +35,6 @@ rustpython-compiler = { workspace = true }
 rustpython-pylib = { workspace = true, optional = true }
 rustpython-stdlib = { workspace = true, optional = true, features = ["compiler"] }
 rustpython-vm = { workspace = true, features = ["compiler", "gc"] }
-ruff_python_parser = { workspace = true }
 
 cfg-if = { workspace = true }
 log = { workspace = true }
@@ -56,6 +55,7 @@ rustyline = { workspace = true }
 criterion = { workspace = true }
 pyo3 = { version = "0.28.2", features = ["auto-initialize"] }
 rustpython-stdlib = { workspace = true }
+ruff_python_parser = { workspace = true }
 
 [[bench]]
 name = "execution"
@@ -169,7 +169,6 @@ ascii = "1.1"
 bitflags = "2.11.0"
 bitflagset = "0.0.3"
 bstr = "1"
-bytes = "1.11.1"
 cfg-if = "1.0"
 chrono = { version = "0.4.44", default-features = false, features = ["clock", "oldtime", "std"] }
 constant_time_eq = "0.4"
@@ -216,7 +215,6 @@ strum = "0.27"
 strum_macros = "0.28"
 syn = "2"
 thiserror = "2.0"
-thread_local = "1.1.9"
 unicode-casing = "0.1.1"
 unic-char-property = "0.9.0"
 unic-normal = "0.9.0"
diff --git a/crates/stdlib/Cargo.toml b/crates/stdlib/Cargo.toml
index 4942467b586..02f122596f6 100644
--- a/crates/stdlib/Cargo.toml
+++ b/crates/stdlib/Cargo.toml
@@ -48,7 +48,6 @@ libc = { workspace = true }
 nix = { workspace = true }
 num-complex = { workspace = true }
 malachite-bigint = { workspace = true }
-num-integer = { workspace = true }
 num-traits = { workspace = true }
 num_enum = { workspace = true }
 parking_lot = { workspace = true }
@@ -78,16 +77,12 @@ constant_time_eq = { workspace = true }
 
 ## unicode stuff
 unicode_names2 = { workspace = true }
-# TODO: use unic for this; needed for title case:
-# https://github.com/RustPython/RustPython/pull/832#discussion_r275428939
-unicode-casing = { workspace = true }
 # update version all at the same time
 unic-char-property = { workspace = true }
 unic-normal        = { workspace = true }
 unic-ucd-bidi      = { workspace = true }
 unic-ucd-category  = { workspace = true }
 unic-ucd-age       = { workspace = true }
-unic-ucd-ident     = { workspace = true }
 ucd = "0.1.1"
 unicode-bidi-mirroring = { workspace = true }
 
diff --git a/crates/venvlauncher/Cargo.toml b/crates/venvlauncher/Cargo.toml
index ac3ea106b7a..c88dc5d356b 100644
--- a/crates/venvlauncher/Cargo.toml
+++ b/crates/venvlauncher/Cargo.toml
@@ -13,15 +13,5 @@ license.workspace = true
 name = "venvlaunchert"
 path = "src/main.rs"
 
-[target.'cfg(windows)'.dependencies]
-windows-sys = { workspace = true, features = [
-    "Win32_Foundation",
-    "Win32_System_Threading",
-    "Win32_System_Environment",
-    "Win32_Storage_FileSystem",
-    "Win32_System_Console",
-    "Win32_Security",
-] }
-
 [lints]
 workspace = true
diff --git a/crates/vm/Cargo.toml b/crates/vm/Cargo.toml
index 5f7e901b834..8a684c93dd9 100644
--- a/crates/vm/Cargo.toml
+++ b/crates/vm/Cargo.toml
@@ -72,7 +72,6 @@ static_assertions = { workspace = true }
 strum = { workspace = true }
 strum_macros = { workspace = true }
 thiserror = { workspace = true }
-thread_local = { workspace = true }
 memchr = { workspace = true }
 
 caseless = "0.2.2"
diff --git a/crates/vm/src/builtins/int.rs b/crates/vm/src/builtins/int.rs
index e42391acd61..0ae1c6d8654 100644
--- a/crates/vm/src/builtins/int.rs
+++ b/crates/vm/src/builtins/int.rs
@@ -24,7 +24,7 @@ use core::cell::Cell;
 use core::ops::{Neg, Not};
 use core::ptr::NonNull;
 use malachite_bigint::{BigInt, Sign};
-use num_integer::Integer;
+use num_integer::{ExtendedGcd, Integer};
 use num_traits::{One, Pow, PrimInt, Signed, ToPrimitive, Zero};
 
 #[pyclass(module = false, name = "int")]
@@ -414,7 +414,6 @@ impl PyInt {
                         if a.is_negative() { a + n } else { a }
                     }
                     fn inverse(a: BigInt, n: &BigInt) -> Option<BigInt> {
-                        use num_integer::*;
                         let ExtendedGcd { gcd, x: c, .. } = a.extended_gcd(n);
                         if gcd.is_one() {
                             Some(normalize(c, n))
diff --git a/crates/wasm/Cargo.toml b/crates/wasm/Cargo.toml
index a2bb1a9f948..a285dcabda9 100644
--- a/crates/wasm/Cargo.toml
+++ b/crates/wasm/Cargo.toml
@@ -23,8 +23,6 @@ rustpython-stdlib = { workspace = true, default-features = false, optional = tru
 # make sure no threading! otherwise wasm build will fail
 rustpython-vm = { workspace = true, features = ["compiler", "encodings", "serde", "wasmbind"] }
 
-ruff_python_parser = { workspace = true }
-
 serde = { workspace = true }
 wasm-bindgen = { workspace = true }
 
@@ -48,3 +46,6 @@ wasm-opt = false#["-O1"]
 
 [lints]
 workspace = true
+
+[package.metadata.cargo-shear]
+ignored = ["serde", "rustpython-common"]