diff --git a/Cargo.lock b/Cargo.lock
index 06676ba9f..ca7c6d5cc 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -450,9 +450,9 @@ checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
 
 [[package]]
 name = "bitflags"
-version = "2.3.3"
+version = "2.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "630be753d4e58660abd17930c71b647fe46c27ea6b63cc59e1e3851406972e42"
+checksum = "b4682ae6287fcf752ecaabbfcc7b6f9b72aa33933dc23a554d853aea8eea8635"
 
 [[package]]
 name = "bitflags-serde-legacy"
@@ -460,7 +460,7 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5b64e60c28b6d25ad92e8b367801ff9aa12b41d05fc8798055d296bace4a60cc"
 dependencies = [
- "bitflags 2.3.3",
+ "bitflags 2.4.0",
  "serde",
 ]
 
@@ -3611,7 +3611,7 @@ version = "0.38.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0a962918ea88d644592894bc6dc55acc6c0956488adcebbfb6e273506b7fd6e5"
 dependencies = [
- "bitflags 2.3.3",
+ "bitflags 2.4.0",
  "errno",
  "libc",
  "linux-raw-sys",
@@ -5463,7 +5463,7 @@ dependencies = [
 name = "zebra-chain"
 version = "1.0.0-beta.28"
 dependencies = [
- "bitflags 2.3.3",
+ "bitflags 2.4.0",
  "bitflags-serde-legacy",
  "bitvec",
  "blake2b_simd",
@@ -5569,7 +5569,7 @@ dependencies = [
 name = "zebra-network"
 version = "1.0.0-beta.28"
 dependencies = [
- "bitflags 2.3.3",
+ "bitflags 2.4.0",
  "byteorder",
  "bytes",
  "chrono",
diff --git a/zebra-chain/Cargo.toml b/zebra-chain/Cargo.toml
index 44ebbb978..8bf7c2d87 100644
--- a/zebra-chain/Cargo.toml
+++ b/zebra-chain/Cargo.toml
@@ -54,7 +54,7 @@ bench = ["zebra-test"]
 
 # Cryptography
 bitvec = "1.0.1"
-bitflags = "2.3.3"
+bitflags = "2.4.0"
 bitflags-serde-legacy = "0.1.1"
 blake2b_simd = "1.0.1"
 blake2s_simd = "1.0.1"
diff --git a/zebra-network/Cargo.toml b/zebra-network/Cargo.toml
index 8097df714..d7cea1175 100644
--- a/zebra-network/Cargo.toml
+++ b/zebra-network/Cargo.toml
@@ -40,7 +40,7 @@ progress-bar = [
 proptest-impl = ["proptest", "proptest-derive", "zebra-chain/proptest-impl"]
 
 [dependencies]
-bitflags = "2.3.3"
+bitflags = "2.4.0"
 byteorder = "1.4.3"
 bytes = "1.4.0"
 chrono = { version = "0.4.26", default-features = false, features = ["clock", "std"] }