diff --git a/Cargo.lock b/Cargo.lock
index 3398ff29f..b17afab1c 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -396,15 +396,6 @@ dependencies = [
  "libc",
 ]
 
-[[package]]
-name = "ipnetwork"
-version = "0.18.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4088d739b183546b239688ddbc79891831df421773df95e236daf7867866d355"
-dependencies = [
- "serde",
-]
-
 [[package]]
 name = "ipnetwork"
 version = "0.19.0"
@@ -567,6 +558,7 @@ dependencies = [
  "log",
  "net_gen",
  "pnet",
+ "pnet_datalink",
  "rate_limiter",
  "serde",
  "serde_json",
@@ -702,34 +694,32 @@ checksum = "1df8c4ec4b0627e53bdf214615ad287367e482558cf84b109250b37464dc03ae"
 
 [[package]]
 name = "pnet"
-version = "0.30.0"
+version = "0.31.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d5cc57672f576f6b95370277fb445738d4887195c6cf4192bdf4f44697e2389b"
+checksum = "0caaf5b11fd907ff15cf14a4477bfabca4b37ab9e447a4f8dead969a59cdafad"
 dependencies = [
- "ipnetwork 0.19.0",
  "pnet_base",
  "pnet_datalink",
  "pnet_packet",
- "pnet_sys",
  "pnet_transport",
 ]
 
 [[package]]
 name = "pnet_base"
-version = "0.30.0"
+version = "0.31.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2e88341c6c842f89bdc7287f7b1e26b6fa64fa11c7ea3756971e6f18cd2510c4"
+checksum = "f9d3a993d49e5fd5d4d854d6999d4addca1f72d86c65adf224a36757161c02b6"
 dependencies = [
  "no-std-net",
 ]
 
 [[package]]
 name = "pnet_datalink"
-version = "0.30.0"
+version = "0.31.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bc6e55d71c51db73372db35bc54f43abd8460adff1c3a9b717804ca6416d5df2"
+checksum = "e466faf03a98ad27f6e15cd27a2b7cc89e73e640a43527742977bc503c37f8aa"
 dependencies = [
- "ipnetwork 0.18.0",
+ "ipnetwork",
  "libc",
  "pnet_base",
  "pnet_sys",
@@ -738,9 +728,9 @@ dependencies = [
 
 [[package]]
 name = "pnet_macros"
-version = "0.30.0"
+version = "0.31.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ebfcdc9c072966723026b3596a1f655fb8bbfe0142f9770f8d481aee4459d6b9"
+checksum = "48dd52a5211fac27e7acb14cfc9f30ae16ae0e956b7b779c8214c74559cef4c3"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -750,18 +740,18 @@ dependencies = [
 
 [[package]]
 name = "pnet_macros_support"
-version = "0.30.0"
+version = "0.31.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bba532f5a4b320c029d89e612671fb621851b3b07e972c53850d34130033a5cd"
+checksum = "89de095dc7739349559913aed1ef6a11e73ceade4897dadc77c5e09de6740750"
 dependencies = [
  "pnet_base",
 ]
 
 [[package]]
 name = "pnet_packet"
-version = "0.30.0"
+version = "0.31.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7009716ac86091c1b6e2cdec95a2b028c880f516054c1ec11edd02f9f463cbde"
+checksum = "bc3b5111e697c39c8b9795b9fdccbc301ab696699e88b9ea5a4e4628978f495f"
 dependencies = [
  "glob",
  "pnet_base",
@@ -771,9 +761,9 @@ dependencies = [
 
 [[package]]
 name = "pnet_sys"
-version = "0.30.0"
+version = "0.31.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8e2a05efbc55c22f664c0ea475fbc4ffc4d09346aff9068438279d7e3d431f6f"
+checksum = "328e231f0add6d247d82421bf3790b4b33b39c8930637f428eef24c4c6a90805"
 dependencies = [
  "libc",
  "winapi",
@@ -781,9 +771,9 @@ dependencies = [
 
 [[package]]
 name = "pnet_transport"
-version = "0.30.0"
+version = "0.31.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "75b8ff06f37863f7590183f7044ab2e8d4dae991ecea0c791e3c6dd61ed2913d"
+checksum = "ff597185e6f1f5671b3122e4dba892a1c73e17c17e723d7669bd9299cbe7f124"
 dependencies = [
  "libc",
  "pnet_base",
diff --git a/net_util/Cargo.toml b/net_util/Cargo.toml
index 38aea2f0b..c1f3c95fd 100644
--- a/net_util/Cargo.toml
+++ b/net_util/Cargo.toml
@@ -22,5 +22,6 @@ vmm-sys-util = "0.9.0"
 
 [dev-dependencies]
 lazy_static = "1.4.0"
-pnet = "0.30.0"
+pnet = "0.31.0"
+pnet_datalink = "0.31.0"
 serde_json = "1.0.81"
diff --git a/net_util/src/tap.rs b/net_util/src/tap.rs
index 7c7a16832..094e195c9 100644
--- a/net_util/src/tap.rs
+++ b/net_util/src/tap.rs
@@ -395,22 +395,20 @@ impl AsRawFd for Tap {
 
 #[cfg(test)]
 mod tests {
-    extern crate pnet;
-
     use std::net::Ipv4Addr;
     use std::str;
     use std::sync::{mpsc, Mutex};
     use std::thread;
     use std::time::Duration;
 
-    use self::pnet::datalink::Channel::Ethernet;
-    use self::pnet::datalink::{self, DataLinkReceiver, DataLinkSender, NetworkInterface};
-    use self::pnet::packet::ethernet::{EtherTypes, EthernetPacket, MutableEthernetPacket};
-    use self::pnet::packet::ip::IpNextHeaderProtocols;
-    use self::pnet::packet::ipv4::{Ipv4Packet, MutableIpv4Packet};
-    use self::pnet::packet::udp::{MutableUdpPacket, UdpPacket};
-    use self::pnet::packet::{MutablePacket, Packet};
-    use self::pnet::util::MacAddr;
+    use pnet::packet::ethernet::{EtherTypes, EthernetPacket, MutableEthernetPacket};
+    use pnet::packet::ip::IpNextHeaderProtocols;
+    use pnet::packet::ipv4::{Ipv4Packet, MutableIpv4Packet};
+    use pnet::packet::udp::{MutableUdpPacket, UdpPacket};
+    use pnet::packet::{MutablePacket, Packet};
+    use pnet::util::MacAddr;
+    use pnet_datalink::Channel::Ethernet;
+    use pnet_datalink::{DataLinkReceiver, DataLinkSender, NetworkInterface};
 
     use super::*;
 
@@ -543,10 +541,10 @@ mod tests {
         let interface_name_matches = |iface: &NetworkInterface| iface.name == ifname;
 
         // Find the network interface with the provided name.
-        let interfaces = datalink::interfaces();
+        let interfaces = pnet_datalink::interfaces();
         let interface = interfaces.into_iter().find(interface_name_matches).unwrap();
 
-        if let Ok(Ethernet(tx, rx)) = datalink::channel(&interface, Default::default()) {
+        if let Ok(Ethernet(tx, rx)) = pnet_datalink::channel(&interface, Default::default()) {
             (interface.mac.unwrap(), tx, rx)
         } else {
             panic!("datalink channel error or unhandled channel type");