diff --git a/Cargo.lock b/Cargo.lock
index b7f0ddb9..6db6d1e1 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -543,9 +543,9 @@ checksum = "14c189c53d098945499cdfa7ecc63567cf3886b3332b312a5b4585d8d3a6a610"
 
 [[package]]
 name = "bytes"
-version = "1.3.0"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dfb24e866b15a1af2a1b663f10c6b6b8f397a84aadb828f12e5b289ec23a3a3c"
+checksum = "89b2fd2a0dcf38d7971e2194b6b6eebab45ae01067456a7fd93d5547a61b70be"
 
 [[package]]
 name = "bzip2-sys"
diff --git a/zebra-network/Cargo.toml b/zebra-network/Cargo.toml
index 371572fd..4150b9f1 100644
--- a/zebra-network/Cargo.toml
+++ b/zebra-network/Cargo.toml
@@ -16,7 +16,7 @@ proptest-impl = ["proptest", "proptest-derive", "zebra-chain/proptest-impl"]
 [dependencies]
 bitflags = "1.3.2"
 byteorder = "1.4.3"
-bytes = "1.3.0"
+bytes = "1.4.0"
 chrono = { version = "0.4.23", default-features = false, features = ["clock", "std"] }
 hex = "0.4.3"
 humantime-serde = "1.1.1"