diff --git a/Cargo.lock b/Cargo.lock
index a4b72245..880495d1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -37,7 +37,7 @@ dependencies = [
  "mailparse",
  "maplit",
  "mockito",
- "nix 0.27.1",
+ "nix 0.29.0",
  "openssh-keys",
  "openssl",
  "pnet_base",
@@ -1156,9 +1156,9 @@ dependencies = [
 
 [[package]]
 name = "mockito"
-version = "1.5.0"
+version = "1.6.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09b34bd91b9e5c5b06338d392463e1318d683cf82ec3d3af4014609be6e2108d"
+checksum = "652cd6d169a36eaf9d1e6bce1a221130439a966d7f27858af66a33a66e9c4ee2"
 dependencies = [
  "assert-json-diff",
  "bytes",