diff --git a/Cargo.lock b/Cargo.lock
index b3667fd..d2e857d 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -95,9 +95,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "bitflags"
-version = "2.6.0"
+version = "2.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b048fb63fd8b5923fc5aa7b340d8e156aec7ec02f0c78fa8a6ddc2613f6f71de"
+checksum = "8f68f53c83ab957f72c32642f3868eec03eb974d1fb82e453128456482613d36"
 
 [[package]]
 name = "block-buffer"
@@ -147,7 +147,21 @@ dependencies = [
  "semver",
  "serde",
  "serde_json",
- "thiserror",
+ "thiserror 1.0.63",
+]
+
+[[package]]
+name = "cargo_metadata"
+version = "0.19.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8769706aad5d996120af43197bf46ef6ad0fda35216b4505f926a365a232d924"
+dependencies = [
+ "camino",
+ "cargo-platform",
+ "semver",
+ "serde",
+ "serde_json",
+ "thiserror 2.0.11",
 ]
 
 [[package]]
@@ -321,16 +335,15 @@ dependencies = [
 
 [[package]]
 name = "dylint"
-version = "3.2.1"
+version = "4.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "22752a1003c06a3f04f9ea66e4899f97132a1888276fee2d5fbe5f6820eee274"
+checksum = "33b5bed63d0bb066456015cda94ca8f3675f0eea1b25024591c124a3e5a274e0"
 dependencies = [
  "ansi_term",
  "anyhow",
- "cargo_metadata",
+ "cargo_metadata 0.19.1",
  "dirs",
- "dylint_internal",
- "is-terminal",
+ "dylint_internal 4.0.0",
  "log",
  "once_cell",
  "semver",
@@ -345,21 +358,36 @@ name = "dylint_internal"
 version = "3.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "f02176c2fa705973bfce833c3f12a69196959086c776ec967a5aa23b5523d4b6"
+dependencies = [
+ "anyhow",
+ "cargo_metadata 0.18.1",
+ "once_cell",
+ "regex",
+ "serde",
+ "thiserror 1.0.63",
+ "toml 0.8.19",
+]
+
+[[package]]
+name = "dylint_internal"
+version = "4.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e89499236f169dc57ad3c6c8e85eea213efcf743c5a9856ab82522e62512bcff"
 dependencies = [
  "ansi_term",
  "anyhow",
- "bitflags 2.6.0",
- "cargo_metadata",
+ "bitflags 2.8.0",
+ "cargo_metadata 0.19.1",
  "git2",
  "home",
  "if_chain",
- "is-terminal",
  "log",
  "once_cell",
  "regex",
  "rust-embed",
+ "rustversion",
  "serde",
- "thiserror",
+ "thiserror 2.0.11",
  "toml 0.8.19",
 ]
 
@@ -369,26 +397,26 @@ version = "3.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0338d94b92ffeece90a8ba405c6d051f18b4483558728537a333daa3bb422616"
 dependencies = [
- "cargo_metadata",
- "dylint_internal",
+ "cargo_metadata 0.18.1",
+ "dylint_internal 3.2.1",
  "paste",
  "rustversion",
  "serde",
- "thiserror",
+ "thiserror 1.0.63",
  "toml 0.8.19",
 ]
 
 [[package]]
 name = "dylint_testing"
-version = "3.2.1"
+version = "4.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e1581603a3fc49b8ede8bed50f5e2d719ce607572f5e5d5d06f200f3285448a"
+checksum = "297ddd66325e2ac6735539863658bfe6798c5d7e163eba6ad06514ea6960ed9a"
 dependencies = [
  "anyhow",
- "cargo_metadata",
+ "cargo_metadata 0.19.1",
  "compiletest_rs",
  "dylint",
- "dylint_internal",
+ "dylint_internal 4.0.0",
  "env_logger",
  "once_cell",
  "regex",
@@ -433,12 +461,12 @@ checksum = "5443807d6dff69373d433ab9ef5378ad8df50ca6298caf15de6e52e24aaf54d5"
 
 [[package]]
 name = "errno"
-version = "0.3.9"
+version = "0.3.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "534c5cf6194dfab3db3242765c03bbe257cf92f22b38f6bc0c58d59108a820ba"
+checksum = "33d852cb9b869c2a9b3df2f71a3074817f01e1844f839a144f5fcef059a4eb5d"
 dependencies = [
  "libc",
- "windows-sys 0.52.0",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -614,7 +642,19 @@ checksum = "c4567c8db10ae91089c99af84c68c38da3ec2f087c3f82960bcdbf3656b6f4d7"
 dependencies = [
  "cfg-if",
  "libc",
- "wasi",
+ "wasi 0.11.0+wasi-snapshot-preview1",
+]
+
+[[package]]
+name = "getrandom"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "43a49c392881ce6d5c3b8cb70f98717b7c07aabbdff06687b9030dbfbe2725f8"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi 0.13.3+wasi-0.2.2",
+ "windows-targets 0.52.6",
 ]
 
 [[package]]
@@ -623,7 +663,7 @@ version = "0.18.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "232e6a7bfe35766bf715e55a88b39a700596c0ccfd88cd3680b4cdb40d66ef70"
 dependencies = [
- "bitflags 2.6.0",
+ "bitflags 2.8.0",
  "libc",
  "libgit2-sys",
  "log",
@@ -657,12 +697,6 @@ version = "0.3.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d231dfb89cfffdbc30e7fc41579ed6066ad03abda9e567ccafae602b97ec5024"
 
-[[package]]
-name = "hermit-abi"
-version = "0.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fbf6a919d6cf397374f7dfeeea91d974c7c0a7221d0d0f4f20d859d329e53fcc"
-
 [[package]]
 name = "home"
 version = "0.5.9"
@@ -704,17 +738,6 @@ dependencies = [
  "hashbrown",
 ]
 
-[[package]]
-name = "is-terminal"
-version = "0.4.13"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "261f68e344040fbd0edea105bef17c66edf46f984ddb1115b775ce31be948f4b"
-dependencies = [
- "hermit-abi 0.4.0",
- "libc",
- "windows-sys 0.52.0",
-]
-
 [[package]]
 name = "is_terminal_polyfill"
 version = "1.70.1"
@@ -753,9 +776,9 @@ checksum = "bbd2bcb4c963f2ddae06a2efc7e9f3591312473c50c6685e1f298068316e66fe"
 
 [[package]]
 name = "libc"
-version = "0.2.158"
+version = "0.2.169"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d8adc4bb1803a324070e64a98ae98f38934d91957a99cfb3a43dcbc01bc56439"
+checksum = "b5aba8db14291edd000dfcc4d620c7ebfb122c613afb886ca8803fa4e128a20a"
 
 [[package]]
 name = "libgit2-sys"
@@ -777,7 +800,7 @@ version = "0.1.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c0ff37bd590ca25063e35af745c343cb7a0271906fb7b37e4813e8f79f00268d"
 dependencies = [
- "bitflags 2.6.0",
+ "bitflags 2.8.0",
  "libc",
  "redox_syscall",
 ]
@@ -867,7 +890,7 @@ version = "1.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4161fcb6d602d4d2081af7c3a45852d875a03dd337a6bfdd6e06407b61342a43"
 dependencies = [
- "hermit-abi 0.3.9",
+ "hermit-abi",
  "libc",
 ]
 
@@ -956,9 +979,9 @@ checksum = "d231b230927b5e4ad203db57bbcbee2802f6bce620b1e4a9024a07d94e2907ec"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.86"
+version = "1.0.93"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5e719e8df665df0d1c8fbfd238015744736151d4445ec0836b8e628aae103b77"
+checksum = "60946a68e5f9d28b0dc1c21bb8a97ee7d018a8b322fa57838ba31cc878e22d99"
 dependencies = [
  "unicode-ident",
 ]
@@ -1009,7 +1032,7 @@ version = "0.5.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2a908a6e00f1fdd0dfd9c0eb08ce85126f6d8bbda50017e74bc4a4b7d4a926a4"
 dependencies = [
- "bitflags 2.6.0",
+ "bitflags 2.8.0",
 ]
 
 [[package]]
@@ -1018,9 +1041,9 @@ version = "0.4.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ba009ff324d1fc1b900bd1fdb31564febe58a8ccc8a6fdbb93b543d33b13ca43"
 dependencies = [
- "getrandom",
+ "getrandom 0.2.15",
  "libredox",
- "thiserror",
+ "thiserror 1.0.63",
 ]
 
 [[package]]
@@ -1111,21 +1134,21 @@ checksum = "70f5b7fc8060f4f8373f9381a630304b42e1183535d9beb1d3f596b236c9106a"
 dependencies = [
  "serde",
  "serde_json",
- "thiserror",
+ "thiserror 1.0.63",
  "tracing",
 ]
 
 [[package]]
 name = "rustix"
-version = "0.38.37"
+version = "0.38.44"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8acb788b847c24f28525660c4d7758620a7210875711f79e7f663cc152726811"
+checksum = "fdb5bc1ae2baa591800df16c9ca78619bf65c0488b41b96ccec5d11220d8c154"
 dependencies = [
- "bitflags 2.6.0",
+ "bitflags 2.8.0",
  "errno",
  "libc",
  "linux-raw-sys",
- "windows-sys 0.52.0",
+ "windows-sys 0.59.0",
 ]
 
 [[package]]
@@ -1233,9 +1256,9 @@ checksum = "3c5e1a9a646d36c3599cd173a41282daf47c44583ad367b8e6837255952e5c67"
 
 [[package]]
 name = "syn"
-version = "2.0.76"
+version = "2.0.98"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "578e081a14e0cefc3279b0472138c513f37b41a08d5a3cca9b6e4e8ceb6cd525"
+checksum = "36147f1a48ae0ec2b5b3bc5b537d267457555a10dc06f3dbc8cb11ba3006d3b1"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -1244,12 +1267,13 @@ dependencies = [
 
 [[package]]
 name = "tempfile"
-version = "3.13.0"
+version = "3.17.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f0f2c9fc62d0beef6951ccffd757e241266a2c833136efbe35af6cd2567dca5b"
+checksum = "22e5a0acb1f3f55f65cc4a866c361b2fb2a0ff6366785ae6fbb5f85df07ba230"
 dependencies = [
  "cfg-if",
  "fastrand",
+ "getrandom 0.3.1",
  "once_cell",
  "rustix",
  "windows-sys 0.59.0",
@@ -1285,7 +1309,16 @@ version = "1.0.63"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c0342370b38b6a11b6cc11d6a805569958d54cfa061a29969c3b5ce2ea405724"
 dependencies = [
- "thiserror-impl",
+ "thiserror-impl 1.0.63",
+]
+
+[[package]]
+name = "thiserror"
+version = "2.0.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d452f284b73e6d76dd36758a0c8684b1d5be31f92b89d07fd5822175732206fc"
+dependencies = [
+ "thiserror-impl 2.0.11",
 ]
 
 [[package]]
@@ -1299,6 +1332,17 @@ dependencies = [
  "syn",
 ]
 
+[[package]]
+name = "thiserror-impl"
+version = "2.0.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26afc1baea8a989337eeb52b6e72a039780ce45c3edfcc9c5b9d112feeb173c2"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "tinyvec"
 version = "1.8.0"
@@ -1487,6 +1531,15 @@ version = "0.11.0+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
 
+[[package]]
+name = "wasi"
+version = "0.13.3+wasi-0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "26816d2e1a4a36a2940b96c5296ce403917633dff8f3440e9b236ed6f6bacad2"
+dependencies = [
+ "wit-bindgen-rt",
+]
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -1740,3 +1793,12 @@ checksum = "68a9bda4691f099d435ad181000724da8e5899daa10713c2d432552b9ccd3a6f"
 dependencies = [
  "memchr",
 ]
+
+[[package]]
+name = "wit-bindgen-rt"
+version = "0.33.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3268f3d866458b787f390cf61f4bbb563b922d091359f9608842999eaee3943c"
+dependencies = [
+ "bitflags 2.8.0",
+]
diff --git a/Cargo.toml b/Cargo.toml
index c8960f4..a47e639 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -42,7 +42,7 @@ members = [
 ]
 
 [dev-dependencies]
-dylint_testing = "3.1.2"
+dylint_testing = "4.0.0"
 
 [workspace.dependencies]
 clippy_utils = { git = "https://github.com/rust-lang/rust-clippy", rev = "37f4fbb92913586b73a35772efd00eccd1cbbe13" }
diff --git a/lints/filter/Cargo.toml b/lints/filter/Cargo.toml
index 300f943..e1283c3 100644
--- a/lints/filter/Cargo.toml
+++ b/lints/filter/Cargo.toml
@@ -15,7 +15,7 @@ dylint_linting = "3.2.1"
 clippy_utils = { workspace = true }
 utils = { workspace = true }
 [dev-dependencies]
-dylint_testing = "3.2.1"
+dylint_testing = "4.0.0"
 
 [package.metadata.rust-analyzer]
 rustc_private = true
diff --git a/lints/fold/Cargo.toml b/lints/fold/Cargo.toml
index 9584086..b0af54a 100644
--- a/lints/fold/Cargo.toml
+++ b/lints/fold/Cargo.toml
@@ -16,7 +16,7 @@ utils = { workspace = true }
 dylint_linting = "3.2.1"
 
 [dev-dependencies]
-dylint_testing = "3.2.1"
+dylint_testing = "4.0.0"
 
 [package.metadata.rust-analyzer]
 rustc_private = true
diff --git a/lints/for_each/Cargo.toml b/lints/for_each/Cargo.toml
index 508e413..ead1221 100644
--- a/lints/for_each/Cargo.toml
+++ b/lints/for_each/Cargo.toml
@@ -15,7 +15,7 @@ dylint_linting = "3.2.1"
 clippy_utils = { workspace = true }
 utils = { workspace = true }
 [dev-dependencies]
-dylint_testing = "3.2.1"
+dylint_testing = "4.0.0"
 
 [package.metadata.rust-analyzer]
 rustc_private = true
diff --git a/lints/map/Cargo.toml b/lints/map/Cargo.toml
index 48f2f7c..d32866c 100644
--- a/lints/map/Cargo.toml
+++ b/lints/map/Cargo.toml
@@ -16,7 +16,7 @@ utils = { workspace = true }
 dylint_linting = "3.2.1"
 
 [dev-dependencies]
-dylint_testing = "3.2.1"
+dylint_testing = "4.0.0"
 
 [package.metadata.rust-analyzer]
 rustc_private = true
diff --git a/lints/par_fold/Cargo.toml b/lints/par_fold/Cargo.toml
index ad2c154..63f836e 100644
--- a/lints/par_fold/Cargo.toml
+++ b/lints/par_fold/Cargo.toml
@@ -15,7 +15,7 @@ dylint_linting = "3.2.1"
 clippy_utils = { workspace = true }
 utils = { workspace = true }
 [dev-dependencies]
-dylint_testing = "3.2.1"
+dylint_testing = "4.0.0"
 rayon = "1.9.0"
 
 [package.metadata.rust-analyzer]
diff --git a/lints/par_iter/Cargo.toml b/lints/par_iter/Cargo.toml
index 152d547..2ca2702 100644
--- a/lints/par_iter/Cargo.toml
+++ b/lints/par_iter/Cargo.toml
@@ -16,7 +16,7 @@ clippy_utils = { workspace = true }
 utils = { workspace = true }
 
 [dev-dependencies]
-dylint_testing = "3.2.1"
+dylint_testing = "4.0.0"
 rayon = "1.9.0"
 futures = "0.3.30"
 
diff --git a/lints/rayon_imports/Cargo.toml b/lints/rayon_imports/Cargo.toml
index cfd5409..8b868df 100644
--- a/lints/rayon_imports/Cargo.toml
+++ b/lints/rayon_imports/Cargo.toml
@@ -15,7 +15,7 @@ dylint_linting = "3.2.1"
 clippy_utils = { workspace = true }
 utils = { workspace = true }
 [dev-dependencies]
-dylint_testing = "3.2.1"
+dylint_testing = "4.0.0"
 rayon = "1.9.0"
 
 [package.metadata.rust-analyzer]
diff --git a/lints/to_iter/Cargo.toml b/lints/to_iter/Cargo.toml
index 4d6d6dc..f84c50e 100644
--- a/lints/to_iter/Cargo.toml
+++ b/lints/to_iter/Cargo.toml
@@ -15,7 +15,7 @@ dylint_linting = "3.2.1"
 clippy_utils = { workspace = true }
 utils = { workspace = true }
 [dev-dependencies]
-dylint_testing = "3.2.1"
+dylint_testing = "4.0.0"
 
 [package.metadata.rust-analyzer]
 rustc_private = true