diff --git a/Cargo.lock b/Cargo.lock
index ec913c371..f03f745de 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -106,7 +106,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "bitflags"
-version = "1.1.0"
+version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -157,7 +157,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "ansi_term 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "atty 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
- "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "strsim 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "textwrap 0.11.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-width 0.1.7 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -178,7 +178,7 @@ dependencies = [
  "net_gen 0.1.0",
  "net_util 0.1.0",
  "qcow 0.1.0",
- "ssh2 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "ssh2 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempdir 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
  "vhost_rs 0.1.0",
  "vhost_user_backend 0.1.0",
@@ -196,7 +196,7 @@ name = "cloudabi"
 version = "0.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -262,7 +262,7 @@ name = "epoll"
 version = "4.0.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
@@ -807,10 +807,10 @@ dependencies = [
 
 [[package]]
 name = "ssh2"
-version = "0.5.0"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "libssh2-sys 0.2.13 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
@@ -993,7 +993,7 @@ dependencies = [
 name = "vhost_rs"
 version = "0.1.0"
 dependencies = [
- "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "tempfile 3.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "vm-memory 0.1.0 (git+https://github.com/rust-vmm/vm-memory)",
@@ -1016,7 +1016,7 @@ dependencies = [
 name = "vhost_user_fs"
 version = "0.1.0"
 dependencies = [
- "bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)",
+ "bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "libc 0.2.66 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.8 (registry+https://github.com/rust-lang/crates.io-index)",
  "vm-memory 0.1.0 (git+https://github.com/rust-vmm/vm-memory)",
@@ -1176,7 +1176,7 @@ dependencies = [
 "checksum backtrace-sys 0.1.32 (registry+https://github.com/rust-lang/crates.io-index)" = "5d6575f128516de27e3ce99689419835fce9643a9b215a14d2b5b685be018491"
 "checksum base64 0.10.1 (registry+https://github.com/rust-lang/crates.io-index)" = "0b25d992356d2eb0ed82172f5248873db5560c4721f564b13cb5193bda5e668e"
 "checksum bitflags 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "4f67931368edf3a9a51d29886d245f1c3db2f1ef0dcc9e35ff70341b78c10d23"
-"checksum bitflags 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "3d155346769a6855b86399e9bc3814ab343cd3d62c7e985113d46a0ec3c281fd"
+"checksum bitflags 1.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "cf1de2fe8c75bc145a2f577add951f8134889b4795d47466a54a5c846d691693"
 "checksum blake2b_simd 0.5.9 (registry+https://github.com/rust-lang/crates.io-index)" = "b83b7baab1e671718d78204225800d6b170e648188ac7dc992e9d6bddf87d0c0"
 "checksum byteorder 1.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "a7c3dd8985a7111efc5c80b44e23ecdd8c007de8ade3b96595387e812b957cf5"
 "checksum c2-chacha 0.2.3 (registry+https://github.com/rust-lang/crates.io-index)" = "214238caa1bf3a496ec3392968969cab8549f96ff30652c9e56885329315f6bb"
@@ -1250,7 +1250,7 @@ dependencies = [
 "checksum serde_json 1.0.44 (registry+https://github.com/rust-lang/crates.io-index)" = "48c575e0cc52bdd09b47f330f646cf59afc586e9c4e3ccd6fc1f625b8ea1dad7"
 "checksum signal-hook 0.1.12 (registry+https://github.com/rust-lang/crates.io-index)" = "7a9c17dd3ba2d36023a5c9472ecddeda07e27fd0b05436e8c1e0c8f178185652"
 "checksum signal-hook-registry 1.2.0 (registry+https://github.com/rust-lang/crates.io-index)" = "94f478ede9f64724c5d173d7bb56099ec3e2d9fc2774aac65d34b8b890405f41"
-"checksum ssh2 0.5.0 (registry+https://github.com/rust-lang/crates.io-index)" = "1d3ecc0e7971a2ebe90b107a9dfb46025e81b66ff761d77cf28c9a8249dd253b"
+"checksum ssh2 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "a5e35e594526c7cf14891247d5af64c44328f5dd67df6beff66e21f8e150222b"
 "checksum strsim 0.8.0 (registry+https://github.com/rust-lang/crates.io-index)" = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
 "checksum syn 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)" = "dff0acdb207ae2fe6d5976617f887eb1e35a2ba52c13c7234c790960cdad9238"
 "checksum synstructure 0.12.3 (registry+https://github.com/rust-lang/crates.io-index)" = "67656ea1dc1b41b1451851562ea232ec2e5a80242139f7e679ceccfb5d61f545"
diff --git a/Cargo.toml b/Cargo.toml
index dda3b1be0..79851194a 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -24,7 +24,7 @@ vmm-sys-util = ">=0.2.1"
 vm-virtio = { path = "vm-virtio" }
 
 [dev-dependencies]
-ssh2 = "0.5.0"
+ssh2 = "0.6.0"
 dirs = "2.0.2"
 credibility = "0.1.3"
 tempdir= "0.3.7"