diff --git a/Cargo.lock b/Cargo.lock
index 793600c6..f496949a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1033,9 +1033,9 @@ dependencies = [
 
 [[package]]
 name = "hex"
-version = "0.4.2"
+version = "0.4.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "644f9158b2f133fd50f5fb3242878846d9eb792e445c893805ff0e3824006e35"
+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
 
 [[package]]
 name = "hidapi"
diff --git a/ethers-contract/Cargo.toml b/ethers-contract/Cargo.toml
index 98161f53..0bee6192 100644
--- a/ethers-contract/Cargo.toml
+++ b/ethers-contract/Cargo.toml
@@ -22,7 +22,7 @@ thiserror = { version = "1.0.24", default-features = false }
 once_cell = { version = "1.7.2", default-features = false }
 pin-project = {version = "1.0.5", default-features = false }
 futures-util = { version = "0.3.13", default-features = false }
-hex = { version = "0.4.2", default-features = false, features = ["std"] }
+hex = { version = "0.4.3", default-features = false, features = ["std"] }
 
 [dev-dependencies]
 ethers = { version = "0.2", path = "../ethers" }
diff --git a/ethers-core/Cargo.toml b/ethers-core/Cargo.toml
index 90f826ce..dfb83d5d 100644
--- a/ethers-core/Cargo.toml
+++ b/ethers-core/Cargo.toml
@@ -30,7 +30,7 @@ serde_json = { version = "1.0.64", default-features = false }
 thiserror = { version = "1.0.24", default-features = false }
 glob = { version = "0.3.0", default-features = false }
 bytes = { version = "1.0.1", features = ["serde"] }
-hex = { version = "0.4.2", default-features = false, features = ["std"] }
+hex = { version = "0.4.3", default-features = false, features = ["std"] }
 
 # bitvec compilation issue
 # https://github.com/bitvecto-rs/bitvec/issues/105#issuecomment-778570981
diff --git a/ethers-middleware/Cargo.toml b/ethers-middleware/Cargo.toml
index 9ac3e591..48d8ffb5 100644
--- a/ethers-middleware/Cargo.toml
+++ b/ethers-middleware/Cargo.toml
@@ -37,7 +37,7 @@ tokio = { version = "1.2" }
 [dev-dependencies]
 ethers = { version = "0.2", path = "../ethers" }
 futures-executor = { version = "0.3.13", features = ["thread-pool"] }
-hex = { version = "0.4.2", default-features = false, features = ["std"] }
+hex = { version = "0.4.3", default-features = false, features = ["std"] }
 rand = { version = "0.7.3", default-features = false }
 tokio = { version = "1.2", default-features = false, features = ["rt", "macros", "time"] }
 
diff --git a/ethers-providers/Cargo.toml b/ethers-providers/Cargo.toml
index 8564dd0a..b1dee86d 100644
--- a/ethers-providers/Cargo.toml
+++ b/ethers-providers/Cargo.toml
@@ -17,7 +17,7 @@ rustdoc-args = ["--cfg", "docsrs"]
 ethers-core = { version = "0.2.2", path = "../ethers-core", default-features = false }
 
 async-trait = { version = "0.1.42", default-features = false }
-hex = { version = "0.4.2", default-features = false, features = ["std"] }
+hex = { version = "0.4.3", default-features = false, features = ["std"] }
 reqwest = { version = "0.11.1", default-features = false, features = ["json", "rustls-tls"] }
 serde = { version = "1.0.123", default-features = false, features = ["derive"] }
 serde_json = { version = "1.0.64", default-features = false }
diff --git a/ethers-signers/Cargo.toml b/ethers-signers/Cargo.toml
index 2d738a5c..d08ed66d 100644
--- a/ethers-signers/Cargo.toml
+++ b/ethers-signers/Cargo.toml
@@ -19,7 +19,7 @@ thiserror = { version = "1.0.24", default-features = false }
 
 coins-ledger = { version = "0.1.0", default-features = false, optional = true }
 eth-keystore = { version = "0.2.0" }
-hex = { version = "0.4.2", default-features = false, features = ["std"] }
+hex = { version = "0.4.3", default-features = false, features = ["std"] }
 async-trait = { version = "0.1.40", default-features = false }
 elliptic-curve = { version = "0.9.4", default-features = false }
 sha2 = { version = "0.9.3", default-features = false }