diff --git a/Cargo.lock b/Cargo.lock
index c04e21cde..3b584d5ba 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -39,7 +39,7 @@ version = "0.11.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ee49baf6cb617b853aa8d93bf420db2383fab46d314482ca2803b40d5fde979b"
 dependencies = [
- "winapi 0.3.9",
+ "winapi",
 ]
 
 [[package]]
@@ -68,7 +68,7 @@ dependencies = [
  "hypervisor",
  "libc",
  "linux-loader",
- "log 0.4.14",
+ "log",
  "serde",
  "serde_derive",
  "serde_json",
@@ -86,7 +86,7 @@ checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
 dependencies = [
  "hermit-abi",
  "libc",
- "winapi 0.3.9",
+ "winapi",
 ]
 
 [[package]]
@@ -119,12 +119,6 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "bitflags"
-version = "0.5.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4f67931368edf3a9a51d29886d245f1c3db2f1ef0dcc9e35ff70341b78c10d23"
-
 [[package]]
 name = "bitflags"
 version = "1.2.1"
@@ -137,7 +131,7 @@ version = "0.1.0"
 dependencies = [
  "io-uring",
  "libc",
- "log 0.4.14",
+ "log",
  "qcow",
  "serde",
  "serde_derive",
@@ -183,7 +177,7 @@ checksum = "37e58ac78573c40708d45522f0d80fa2f01cc4f9b4e2bf749807255454312002"
 dependencies = [
  "ansi_term",
  "atty",
- "bitflags 1.2.1",
+ "bitflags",
  "strsim",
  "term_size",
  "textwrap",
@@ -205,7 +199,7 @@ dependencies = [
  "hypervisor",
  "lazy_static",
  "libc",
- "log 0.4.14",
+ "log",
  "net_util",
  "option_parser",
  "seccomp",
@@ -225,7 +219,7 @@ version = "0.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ddfc5b9aa5d4507acaf872de71051dfd0e309860e88966e1051e462a077aac4f"
 dependencies = [
- "bitflags 1.2.1",
+ "bitflags",
 ]
 
 [[package]]
@@ -250,11 +244,11 @@ version = "0.1.0"
 dependencies = [
  "acpi_tables",
  "anyhow",
- "bitflags 1.2.1",
+ "bitflags",
  "byteorder",
  "epoll",
  "libc",
- "log 0.4.14",
+ "log",
  "versionize",
  "versionize_derive",
  "vm-device",
@@ -280,7 +274,7 @@ checksum = "03d86534ed367a67548dc68113a0f5db55432fdfbb6e6f9d77704397d95d5780"
 dependencies = [
  "libc",
  "redox_users",
- "winapi 0.3.9",
+ "winapi",
 ]
 
 [[package]]
@@ -291,7 +285,7 @@ checksum = "17392a012ea30ef05a610aa97dfb49496e71c9f676b27879922ea5bdf60d9d3f"
 dependencies = [
  "atty",
  "humantime",
- "log 0.4.14",
+ "log",
  "regex",
  "termcolor",
 ]
@@ -302,7 +296,7 @@ version = "4.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "20df693c700404f7e19d4d6fae6b15215d2913c27955d2b9d6f2c0f537511cd0"
 dependencies = [
- "bitflags 1.2.1",
+ "bitflags",
  "libc",
 ]
 
@@ -357,9 +351,9 @@ checksum = "0e4075386626662786ddb0ec9081e7c7eeb1ba31951f447ca780ef9f5d568189"
 
 [[package]]
 name = "glob"
-version = "0.2.11"
+version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8be18de09a56b60ed0edf84bc9df007e30040691af7acd1c41874faac5895bfb"
+checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
 
 [[package]]
 name = "hermit-abi"
@@ -387,7 +381,7 @@ dependencies = [
  "kvm-bindings",
  "kvm-ioctls",
  "libc",
- "log 0.4.14",
+ "log",
  "mshv-bindings",
  "mshv-ioctls",
  "serde",
@@ -414,15 +408,15 @@ version = "0.5.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fb82832e05cc4ca298f198a8db108837b4f7b7b1248e3cba8e48f151aece80cf"
 dependencies = [
- "bitflags 1.2.1",
+ "bitflags",
  "libc",
 ]
 
 [[package]]
 name = "ipnetwork"
-version = "0.17.0"
+version = "0.18.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02c3eaab3ac0ede60ffa41add21970a7df7d91772c03383aac6c2c3d53cc716b"
+checksum = "4088d739b183546b239688ddbc79891831df421773df95e236daf7867866d355"
 dependencies = [
  "serde",
 ]
@@ -433,16 +427,6 @@ version = "0.4.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "dd25036021b0de88a0aff6b850051563c6516d0bf53f8638938edbb9de732736"
 
-[[package]]
-name = "kernel32-sys"
-version = "0.2.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
-dependencies = [
- "winapi 0.2.8",
- "winapi-build",
-]
-
 [[package]]
 name = "kvm-bindings"
 version = "0.4.0"
@@ -520,15 +504,6 @@ dependencies = [
  "scopeguard",
 ]
 
-[[package]]
-name = "log"
-version = "0.3.9"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e19e8d5c34a3e0e2223db8e060f9e8264aeeb5c5fc64a4ee9965c062211c024b"
-dependencies = [
- "log 0.4.14",
-]
-
 [[package]]
 name = "log"
 version = "0.4.14"
@@ -599,7 +574,7 @@ dependencies = [
  "epoll",
  "lazy_static",
  "libc",
- "log 0.4.14",
+ "log",
  "net_gen",
  "pnet",
  "rate_limiter",
@@ -655,7 +630,7 @@ dependencies = [
  "libc",
  "redox_syscall 0.1.57",
  "smallvec",
- "winapi 0.3.9",
+ "winapi",
 ]
 
 [[package]]
@@ -666,7 +641,7 @@ dependencies = [
  "byteorder",
  "hypervisor",
  "libc",
- "log 0.4.14",
+ "log",
  "serde",
  "serde_derive",
  "serde_json",
@@ -687,9 +662,9 @@ checksum = "3831453b3449ceb48b6d9c7ad7c96d5ea673e9b470a1dc578c2ce6521230884c"
 
 [[package]]
 name = "pnet"
-version = "0.27.2"
+version = "0.28.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b657d5b9a98a2c81b82549922b8b15984e49f8120cd130b11a09f81b9b55d633"
+checksum = "4b6d2a0409666964722368ef5fb74b9f93fac11c18bef3308693c16c6733f103"
 dependencies = [
  "ipnetwork",
  "pnet_base",
@@ -701,71 +676,71 @@ dependencies = [
 
 [[package]]
 name = "pnet_base"
-version = "0.27.2"
+version = "0.28.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4e4688aa497ef62129f302a5800ebde67825f8ff129f43690ca84099f6620bed"
+checksum = "25488cd551a753dcaaa6fffc9f69a7610a412dd8954425bf7ffad5f7d1156fb8"
 
 [[package]]
 name = "pnet_datalink"
-version = "0.27.2"
+version = "0.28.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "59001c9c4d9d23bf2f61afaaf134a766fd6932ba2557c606b9112157053b9ac7"
+checksum = "d4d1f8ab1ef6c914cf51dc5dfe0be64088ea5f3b08bbf5a31abc70356d271198"
 dependencies = [
  "ipnetwork",
  "libc",
  "pnet_base",
  "pnet_sys",
- "winapi 0.3.9",
+ "winapi",
 ]
 
 [[package]]
 name = "pnet_macros"
-version = "0.27.2"
+version = "0.28.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d894a90dbdbe976e624453fc31b1912f658083778329442dda1cca94f76a3e76"
+checksum = "30490e0852e58402b8fae0d39897b08a24f493023a4d6cf56b2e30f31ed57548"
 dependencies = [
+ "proc-macro2",
+ "quote",
  "regex",
- "syntex",
- "syntex_syntax",
+ "syn",
 ]
 
 [[package]]
 name = "pnet_macros_support"
-version = "0.27.2"
+version = "0.28.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4b99269a458570bc06a9132254349f6543d9abc92e88b68d8de934aac9481f6c"
+checksum = "d4714e10f30cab023005adce048f2d30dd4ac4f093662abf2220855655ef8f90"
 dependencies = [
  "pnet_base",
 ]
 
 [[package]]
 name = "pnet_packet"
-version = "0.27.2"
+version = "0.28.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "33f8238f4eb897a55ca06510cd71afb5b5ca7b4ff2d7188f1ca855fc1710133e"
+checksum = "8588067671d03c9f4254b2e66fecb4d8b93b5d3e703195b84f311cd137e32130"
 dependencies = [
  "glob",
  "pnet_base",
  "pnet_macros",
  "pnet_macros_support",
- "syntex",
 ]
 
 [[package]]
 name = "pnet_sys"
-version = "0.27.2"
+version = "0.28.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7589e4c4e7ed72a3ffdff8a65d3bea84e8c3a23e19d0a10e8f45efdf632fff15"
+checksum = "d9a3f32b0df45515befd19eed04616f6b56a488da92afc61164ef455e955f07f"
 dependencies = [
  "libc",
- "winapi 0.3.9",
+ "winapi",
 ]
 
 [[package]]
 name = "pnet_transport"
-version = "0.27.2"
+version = "0.28.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "326abdfd2e70e8e943bd58087b59686de170cac050a3b19c9fcc84db01690af5"
+checksum = "932b2916d693bcc5fa18443dc99142e0a6fd31a6ce75a511868f7174c17e2bce"
 dependencies = [
  "libc",
  "pnet_base",
@@ -779,7 +754,7 @@ version = "1.0.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a152013215dca273577e18d2bf00fa862b89b24169fb78c4c95aeb07992c9cec"
 dependencies = [
- "unicode-xid 0.2.2",
+ "unicode-xid",
 ]
 
 [[package]]
@@ -788,7 +763,7 @@ version = "0.1.0"
 dependencies = [
  "byteorder",
  "libc",
- "log 0.4.14",
+ "log",
  "remain",
  "vmm-sys-util",
 ]
@@ -807,7 +782,7 @@ name = "rate_limiter"
 version = "0.1.0"
 dependencies = [
  "libc",
- "log 0.4.14",
+ "log",
  "vmm-sys-util",
 ]
 
@@ -823,7 +798,7 @@ version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "742739e41cd49414de871ea5e549afb7e2a3ac77b589bcbebe8c82fab37147fc"
 dependencies = [
- "bitflags 1.2.1",
+ "bitflags",
 ]
 
 [[package]]
@@ -870,12 +845,6 @@ version = "0.1.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "410f7acf3cb3a44527c5d9546bad4bf4e6c460915d5f9f2fc524498bfe8f70ce"
 
-[[package]]
-name = "rustc-serialize"
-version = "0.3.24"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dcf128d1287d2ea9d80910b5f1120d0b8eede3fbf1abe91c40d39ea7d51e6fda"
-
 [[package]]
 name = "ryu"
 version = "1.0.5"
@@ -955,7 +924,7 @@ version = "0.9.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d876d4d57f6bbf2245d43f7ec53759461f801a446d3693704aa6d27b257844d7"
 dependencies = [
- "bitflags 1.2.1",
+ "bitflags",
  "libc",
  "libssh2-sys",
  "parking_lot",
@@ -981,7 +950,7 @@ checksum = "a1e8cdbefb79a9a5a65e0db8b47b723ee907b7c7f8496c76a1770b5c310bab82"
 dependencies = [
  "proc-macro2",
  "quote",
- "unicode-xid 0.2.2",
+ "unicode-xid",
 ]
 
 [[package]]
@@ -993,66 +962,7 @@ dependencies = [
  "proc-macro2",
  "quote",
  "syn",
- "unicode-xid 0.2.2",
-]
-
-[[package]]
-name = "syntex"
-version = "0.42.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0a30b08a6b383a22e5f6edc127d169670d48f905bb00ca79a00ea3e442ebe317"
-dependencies = [
- "syntex_errors",
- "syntex_syntax",
-]
-
-[[package]]
-name = "syntex_errors"
-version = "0.42.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "04c48f32867b6114449155b2a82114b86d4b09e1bddb21c47ff104ab9172b646"
-dependencies = [
- "libc",
- "log 0.3.9",
- "rustc-serialize",
- "syntex_pos",
- "term",
- "unicode-xid 0.0.3",
-]
-
-[[package]]
-name = "syntex_pos"
-version = "0.42.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3fd49988e52451813c61fecbe9abb5cfd4e1b7bb6cdbb980a6fbcbab859171a6"
-dependencies = [
- "rustc-serialize",
-]
-
-[[package]]
-name = "syntex_syntax"
-version = "0.42.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7628a0506e8f9666fdabb5f265d0059b059edac9a3f810bda077abb5d826bd8d"
-dependencies = [
- "bitflags 0.5.0",
- "libc",
- "log 0.3.9",
- "rustc-serialize",
- "syntex_errors",
- "syntex_pos",
- "term",
- "unicode-xid 0.0.3",
-]
-
-[[package]]
-name = "term"
-version = "0.4.6"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fa63644f74ce96fbeb9b794f66aff2a52d601cbd5e80f4b97123e3899f4570f1"
-dependencies = [
- "kernel32-sys",
- "winapi 0.2.8",
+ "unicode-xid",
 ]
 
 [[package]]
@@ -1062,7 +972,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "1e4129646ca0ed8f45d09b929036bafad5377103edd06e50bf574b353d2b08d9"
 dependencies = [
  "libc",
- "winapi 0.3.9",
+ "winapi",
 ]
 
 [[package]]
@@ -1122,12 +1032,6 @@ version = "0.1.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9337591893a19b88d8d87f2cec1e73fad5cdfd10e5a6f349f498ad6ea2ffb1e3"
 
-[[package]]
-name = "unicode-xid"
-version = "0.0.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "36dff09cafb4ec7c8cf0023eb0b686cb6ce65499116a12201c9e11840ca01beb"
-
 [[package]]
 name = "unicode-xid"
 version = "0.2.2"
@@ -1190,7 +1094,7 @@ dependencies = [
  "byteorder",
  "kvm-bindings",
  "kvm-ioctls",
- "log 0.4.14",
+ "log",
  "vfio-bindings",
  "vm-memory",
  "vmm-sys-util",
@@ -1201,7 +1105,7 @@ name = "vhost"
 version = "0.1.0"
 source = "git+https://github.com/rust-vmm/vhost?branch=master#e5b930b73a47cbdd79858e2e68bcb57123d1c1f3"
 dependencies = [
- "bitflags 1.2.1",
+ "bitflags",
  "libc",
  "vmm-sys-util",
 ]
@@ -1212,7 +1116,7 @@ version = "0.1.0"
 dependencies = [
  "epoll",
  "libc",
- "log 0.4.14",
+ "log",
  "vhost",
  "virtio-bindings",
  "vm-memory",
@@ -1228,7 +1132,7 @@ dependencies = [
  "clap",
  "epoll",
  "libc",
- "log 0.4.14",
+ "log",
  "option_parser",
  "qcow",
  "vhost",
@@ -1245,7 +1149,7 @@ dependencies = [
  "clap",
  "epoll",
  "libc",
- "log 0.4.14",
+ "log",
  "net_util",
  "option_parser",
  "vhost",
@@ -1273,7 +1177,7 @@ dependencies = [
  "event_monitor",
  "io-uring",
  "libc",
- "log 0.4.14",
+ "log",
  "net_gen",
  "net_util",
  "pci",
@@ -1330,7 +1234,7 @@ checksum = "625f401b1b8b3ac3d43f53903cd138cfe840bd985f8581e553027b31d2bb8ae8"
 dependencies = [
  "arc-swap",
  "libc",
- "winapi 0.3.9",
+ "winapi",
 ]
 
 [[package]]
@@ -1351,7 +1255,7 @@ dependencies = [
 name = "vm-virtio"
 version = "0.1.0"
 dependencies = [
- "log 0.4.14",
+ "log",
  "serde",
  "serde_derive",
  "serde_json",
@@ -1367,7 +1271,7 @@ dependencies = [
  "anyhow",
  "arc-swap",
  "arch",
- "bitflags 1.2.1",
+ "bitflags",
  "block_util",
  "clap",
  "credibility",
@@ -1378,7 +1282,7 @@ dependencies = [
  "lazy_static",
  "libc",
  "linux-loader",
- "log 0.4.14",
+ "log",
  "micro_http",
  "net_util",
  "option_parser",
@@ -1406,7 +1310,7 @@ version = "0.8.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "01cf11afbc4ebc0d5c7a7748a77d19e2042677fc15faa2f4ccccb27c18a60605"
 dependencies = [
- "bitflags 1.2.1",
+ "bitflags",
  "libc",
  "serde",
  "serde_derive",
@@ -1427,12 +1331,6 @@ version = "0.10.2+wasi-snapshot-preview1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"
 
-[[package]]
-name = "winapi"
-version = "0.2.8"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
-
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -1443,12 +1341,6 @@ dependencies = [
  "winapi-x86_64-pc-windows-gnu",
 ]
 
-[[package]]
-name = "winapi-build"
-version = "0.1.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
-
 [[package]]
 name = "winapi-i686-pc-windows-gnu"
 version = "0.4.0"
@@ -1461,7 +1353,7 @@ version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
 dependencies = [
- "winapi 0.3.9",
+ "winapi",
 ]
 
 [[package]]
diff --git a/net_util/Cargo.toml b/net_util/Cargo.toml
index 7573ded33..5cebd9c17 100644
--- a/net_util/Cargo.toml
+++ b/net_util/Cargo.toml
@@ -18,5 +18,5 @@ vmm-sys-util = ">=0.3.1"
 
 [dev-dependencies]
 lazy_static = "1.3.0"
-pnet = "0.27.2"
+pnet = "0.28.0"
 serde_json = "1.0.64"