diff --git a/Cargo.lock b/Cargo.lock
index a67dba3..efc5e42 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -46,9 +46,9 @@ checksum = "904dfeac50f3cdaba28fc6f57fdcddb75f49ed61346676a78c4ffe55877802fd"
 
 [[package]]
 name = "bitflags"
-version = "1.2.1"
+version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "block-buffer"
@@ -533,14 +533,15 @@ dependencies = [
 
 [[package]]
 name = "nix"
-version = "0.19.1"
+version = "0.23.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b2ccba0cfe4fdf15982d1674c69b1fd80bad427d293849982668dfe454bd61f2"
+checksum = "f305c2c2e4c39a82f7bf0bf65fb557f9070ce06781d4f2454295cc34b1c43188"
 dependencies = [
  "bitflags",
  "cc",
  "cfg-if 1.0.0",
  "libc",
+ "memoffset",
 ]
 
 [[package]]
@@ -632,12 +633,12 @@ checksum = "ac74c624d6b2d21f425f752262f42188365d7b8ff1aff74c82e45136510a4857"
 
 [[package]]
 name = "privdrop"
-version = "0.5.0"
+version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ebd4c2739642e70439d1c0d9545beec45c1e54128739b3cda29bf2c366028c87"
+checksum = "4c02cf257b10e4b807bccadb19630d5dea7e0369c3c5e84673ee8e58dc8da6a5"
 dependencies = [
  "libc",
- "nix 0.19.1",
+ "nix 0.23.0",
 ]
 
 [[package]]