diff --git a/Cargo.lock b/Cargo.lock
index 5549bcb79..50354f047 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -938,7 +938,7 @@ version = "0.0.1"
 dependencies = [
  "getopts 0.2.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
- "num_cpus 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "num_cpus 1.10.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "uucore 0.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -957,7 +957,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "num_cpus"
-version = "1.10.0"
+version = "1.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "libc 0.2.58 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -2200,7 +2200,7 @@ dependencies = [
 "checksum nodrop 0.1.13 (registry+https://github.com/rust-lang/crates.io-index)" = "2f9667ddcc6cc8a43afc9b7917599d7216aa09c463919ea32c59ed6cac8bc945"
 "checksum num-integer 0.1.39 (registry+https://github.com/rust-lang/crates.io-index)" = "e83d528d2677f0518c570baf2b7abdcf0cd2d248860b68507bdcb3e91d4c0cea"
 "checksum num-traits 0.2.6 (registry+https://github.com/rust-lang/crates.io-index)" = "0b3a5d7cc97d6d30d8b9bc8fa19bf45349ffe46241e8816f50f62f6d6aaabee1"
-"checksum num_cpus 1.10.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1a23f0ed30a54abaa0c7e83b1d2d87ada7c3c23078d1d87815af3e3b6385fbba"
+"checksum num_cpus 1.10.1 (registry+https://github.com/rust-lang/crates.io-index)" = "bcef43580c035376c0705c42792c294b66974abbfd2789b511784023f71f3273"
 "checksum number_prefix 0.2.8 (registry+https://github.com/rust-lang/crates.io-index)" = "dbf9993e59c894e3c08aa1c2712914e9e6bf1fcbfc6bef283e2183df345a4fee"
 "checksum numtoa 0.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b8f8bdf33df195859076e54ab11ee78a1b208382d3a26ec40d142ffc1ecc49ef"
 "checksum onig 4.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a646989adad8a19f49be2090374712931c3a59835cb5277b4530f48b417f26e7"
diff --git a/src/nproc/Cargo.toml b/src/nproc/Cargo.toml
index 622309f17..c622e3a2e 100644
--- a/src/nproc/Cargo.toml
+++ b/src/nproc/Cargo.toml
@@ -11,7 +11,7 @@ path = "nproc.rs"
 [dependencies]
 getopts = "0.2.18"
 libc = "0.2.42"
-num_cpus = "1.5"
+num_cpus = "1.10"
 uucore = "0.0.1"
 
 [[bin]]