diff --git a/Cargo.lock b/Cargo.lock
index e2ea9f21..d00b0356 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1049,9 +1049,9 @@ checksum = "5e5032e24019045c762d3c0f28f5b6b8bbf38563a65908389bf7978758920897"
 
 [[package]]
 name = "many_cpus"
-version = "1.1.5"
+version = "2.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d4ab614fc8e14ffa2aab66ed7942362b33191752f3a5bf9533e9f88e4204545f"
+checksum = "3adf40dd69ad4b51598dd0c6f16fa69fb41e7d2cb9dc5961225c259f6fc79674"
 dependencies = [
  "cpulist",
  "derive_more",
@@ -1060,7 +1060,6 @@ dependencies = [
  "heapless",
  "itertools 0.14.0",
  "libc",
- "negative-impl",
  "new_zealand",
  "nonempty",
  "rand 0.9.2",
@@ -1106,17 +1105,6 @@ version = "0.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "bc0287524726960e07b119cebd01678f852f147742ae0d925e6a520dca956126"
 
-[[package]]
-name = "negative-impl"
-version = "0.1.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "67670e6848468ee39b823ed93add8bd2adb66a132b0c25fce6e60af0b81d930a"
-dependencies = [
- "proc-macro2",
- "quote",
- "syn",
-]
-
 [[package]]
 name = "new_zealand"
 version = "1.0.3"
diff --git a/Cargo.toml b/Cargo.toml
index f5c45183..c3e65aba 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -68,7 +68,7 @@ infinity_pool = { version = "0.8.1", default-features = false }
 insta = { version = "1.44.1", default-features = false }
 jiff = { version = "0.2.16", default-features = false }
 libc = { version = "0.2.178", default-features = false }
-many_cpus = { version = "1.1.0", default-features = false }
+many_cpus = { version = "2.0.0", default-features = false }
 mockall = { version = "0.14.0", default-features = false }
 mutants = { version = "0.0.3", default-features = false }
 new_zealand = { version = "1.0.1", default-features = false }