diff --git a/Cargo.lock b/Cargo.lock
index 078f658..82fcfc5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -90,7 +90,7 @@ checksum = "d4cec688ee0fcd143ffd7893ce2c9857bfc656eb1f2a27202244b72f08f5f8ed"
 dependencies = [
  "libc",
  "log",
- "nix",
+ "nix 0.20.0",
  "regex",
 ]
 
@@ -155,7 +155,7 @@ dependencies = [
  "cmd_lib",
  "ctrlc",
  "flume",
- "nix",
+ "nix 0.21.0",
  "structopt",
  "tracing",
  "tracing-subscriber",
@@ -168,7 +168,7 @@ version = "3.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "232295399409a8b7ae41276757b5a1cc21032848d42bff2352261f958b3ca29a"
 dependencies = [
- "nix",
+ "nix 0.20.0",
  "winapi",
 ]
 
@@ -262,9 +262,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.88"
+version = "0.2.97"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "03b07a082330a35e43f63177cc01689da34fbffa0105e1246cf0311472cac73a"
+checksum = "12b8adadd720df158f4d70dfe7ccc6adb0472d7c55ca83445f6a5ab3e36f8fb6"
 
 [[package]]
 name = "lock_api"
@@ -299,6 +299,15 @@ version = "2.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0ee1c47aaa256ecabcaea351eae4a9b01ef39ed810004e298d2511ed284b1525"
 
+[[package]]
+name = "memoffset"
+version = "0.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "59accc507f1338036a0477ef61afdae33cde60840f4dfe481319ce3ad116ddf9"
+dependencies = [
+ "autocfg",
+]
+
 [[package]]
 name = "nanorand"
 version = "0.5.2"
@@ -320,6 +329,19 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "nix"
+version = "0.21.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c3728fec49d363a50a8828a190b379a446cc5cf085c06259bbbeb34447e4ec7"
+dependencies = [
+ "bitflags",
+ "cc",
+ "cfg-if",
+ "libc",
+ "memoffset",
+]
+
 [[package]]
 name = "num-integer"
 version = "0.1.44"
diff --git a/Cargo.toml b/Cargo.toml
index d9e6b3f..46300c6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -17,6 +17,6 @@ structopt = "0.3"
 cmd_lib = "1.1"
 ctrlc = "3.1"
 cgroups-rs = "0.2"
-nix = "0.20"
+nix = "0.21"
 flume = "0.10"
 with_drop = "0.0.1"