diff --git a/Cargo.lock b/Cargo.lock
index 6857c03..ce7e1e1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -284,7 +284,6 @@ checksum = "391290121bad3d37fbddad76d8f5d1c1c314cfc646d143d7e07a3086ddff0ce3"
 dependencies = [
  "bitflags",
  "libc",
- "redox_syscall",
 ]
 
 [[package]]
@@ -522,20 +521,11 @@ version = "5.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "69cdb34c158ceb288df11e18b4bd39de994f6657d83847bdffdbd7f346754b0f"
 
-[[package]]
-name = "redox_syscall"
-version = "0.5.17"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5407465600fb0548f1442edf71dd20683c6ed326200ace4b1ef0763521bb3b77"
-dependencies = [
- "bitflags",
-]
-
 [[package]]
 name = "redox_users"
-version = "0.5.1"
+version = "0.5.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "78eaea1f52c56d57821be178b2d47e09ff26481a6042e8e042fcb0ced068b470"
+checksum = "a4e608c6638b9c18977b00b475ac1f28d14e84b27d8d42f70e0bf1e3dec127ac"
 dependencies = [
  "getrandom 0.2.16",
  "libredox",