diff --git a/Cargo.lock b/Cargo.lock
index 0939536..e076464 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -457,7 +457,7 @@ dependencies = [
  "crypto-mac 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "hmac 0.7.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "rand 0.5.6 (registry+https://github.com/rust-lang/crates.io-index)",
- "sha2 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sha2 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "subtle 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -693,7 +693,7 @@ dependencies = [
 
 [[package]]
 name = "sha2"
-version = "0.8.0"
+version = "0.8.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "block-buffer 0.7.3 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -967,7 +967,7 @@ dependencies = [
  "gumdrop 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.10 (registry+https://github.com/rust-lang/crates.io-index)",
- "sha2 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sha2 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "subtle-encoding 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "termcolor 1.0.5 (registry+https://github.com/rust-lang/crates.io-index)",
  "x509-parser 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -996,7 +996,7 @@ dependencies = [
  "rsa 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "secrecy 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "sha-1 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
- "sha2 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "sha2 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "subtle 2.2.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "subtle-encoding 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "x509 0.1.2 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -1109,7 +1109,7 @@ dependencies = [
 "checksum semver-parser 0.7.0 (registry+https://github.com/rust-lang/crates.io-index)" = "388a1df253eca08550bef6c72392cfe7c30914bf41df5269b68cbd6ff8f570a3"
 "checksum serde 1.0.103 (registry+https://github.com/rust-lang/crates.io-index)" = "1217f97ab8e8904b57dd22eb61cde455fa7446a9c1cf43966066da047c1f3702"
 "checksum sha-1 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "23962131a91661d643c98940b20fcaffe62d776a823247be80a48fcb8b6fce68"
-"checksum sha2 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "7b4d8bfd0e469f417657573d8451fb33d16cfe0989359b93baf3a1ffc639543d"
+"checksum sha2 0.8.1 (registry+https://github.com/rust-lang/crates.io-index)" = "27044adfd2e1f077f649f59deb9490d3941d674002f7d062870a60ebe9bd47a0"
 "checksum smallvec 1.0.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4ecf3b85f68e8abaa7555aa5abdb1153079387e60b718283d732f03897fcfc86"
 "checksum sourcefile 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "4bf77cb82ba8453b42b6ae1d692e4cdc92f9a47beaf89a847c8be83f4e328ad3"
 "checksum spin 0.5.2 (registry+https://github.com/rust-lang/crates.io-index)" = "6e63cff320ae2c57904679ba7cb63280a3dc4613885beafb148ee7bf9aa9042d"