diff --git a/Cargo.lock b/Cargo.lock
index 64f9d55..29689b4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -179,7 +179,6 @@ dependencies = [
  "chrono 0.4.19 (registry+https://github.com/rust-lang/crates.io-index)",
  "dirs 3.0.1 (registry+https://github.com/rust-lang/crates.io-index)",
  "dotenv 0.15.0 (registry+https://github.com/rust-lang/crates.io-index)",
- "hex 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "lazy_static 1.4.0 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.4.11 (registry+https://github.com/rust-lang/crates.io-index)",
  "miniscript 3.0.0 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -550,11 +549,6 @@ name = "hex"
 version = "0.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
-[[package]]
-name = "hex"
-version = "0.4.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-
 [[package]]
 name = "http"
 version = "0.2.1"
@@ -2030,7 +2024,6 @@ dependencies = [
 "checksum heck 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "20564e78d53d2bb135c343b3f47714a56af2061f1c928fdb541dc7b9fdd94205"
 "checksum hermit-abi 0.1.17 (registry+https://github.com/rust-lang/crates.io-index)" = "5aca5565f760fb5b220e499d72710ed156fdb74e631659e99377d9ebfbd13ae8"
 "checksum hex 0.3.2 (registry+https://github.com/rust-lang/crates.io-index)" = "805026a5d0141ffc30abb3be3173848ad46a1b1664fe632428479619a3644d77"
-"checksum hex 0.4.2 (registry+https://github.com/rust-lang/crates.io-index)" = "644f9158b2f133fd50f5fb3242878846d9eb792e445c893805ff0e3824006e35"
 "checksum http 0.2.1 (registry+https://github.com/rust-lang/crates.io-index)" = "28d569972648b2c512421b5f2a405ad6ac9666547189d0c5477a3f200f3e02f9"
 "checksum http-body 0.3.1 (registry+https://github.com/rust-lang/crates.io-index)" = "13d5ff830006f7646652e057693569bfe0d51760c0085a071769d142a205111b"
 "checksum httparse 1.3.4 (registry+https://github.com/rust-lang/crates.io-index)" = "cd179ae861f0c2e53da70d892f5f3029f9594be0c41dc5269cd371691b1dc2f9"
diff --git a/Cargo.toml b/Cargo.toml
index 99b17e9..484ca58 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -35,7 +35,6 @@ bitcoin_hashes = { version = "0.9.0", features = [ "serde" ] }
 bitcoincore-rpc = "0.12.0"
 miniscript = { version = "3.0.0", features = [ "serde" ] }
 chrono = { version = "0.4.19", default-features = false }
-hex = "0.4.2"
 serde = { version = "1.0.117", features = [ "derive" ] }
 serde_json = "1.0.59"
 lazy_static = "1.4.0"
diff --git a/src/electrum/server.rs b/src/electrum/server.rs
index b2168eb..8dcb350 100644
--- a/src/electrum/server.rs
+++ b/src/electrum/server.rs
@@ -7,6 +7,7 @@ use std::sync::{Arc, Mutex};
 use std::thread;
 
 use bitcoin::Txid;
+use bitcoin_hashes::hex::ToHex;
 use serde_json::{from_str, from_value, Value};
 
 use crate::electrum::{electrum_height, QueryExt};
@@ -255,7 +256,7 @@ impl Connection {
             json!(self.query.get_tx_json(&txid)?)
         } else {
             let raw = self.query.get_tx_raw(&txid)?;
-            json!(hex::encode(&raw))
+            json!(raw.to_hex())
         })
     }
 
diff --git a/src/http.rs b/src/http.rs
index e424ada..ff2631f 100644
--- a/src/http.rs
+++ b/src/http.rs
@@ -9,7 +9,7 @@ use warp::sse::ServerSentEvent;
 use warp::{self, reply, Filter, Reply};
 
 use bitcoin::{Address, BlockHash, OutPoint, Txid};
-use bitcoin_hashes::hex::FromHex;
+use bitcoin_hashes::hex::{FromHex, ToHex};
 
 use crate::error::{fmt_error_chain, BwtError, Error, OptionExt};
 use crate::types::{BlockId, ScriptHash};
@@ -225,7 +225,7 @@ fn setup(
         .and(query.clone())
         .map(|txid: Txid, query: Arc<Query>| {
             let tx_raw = query.get_tx_raw(&txid)?;
-            Ok(hex::encode(tx_raw))
+            Ok(tx_raw.to_hex())
         })
         .map(handle_error);
 
@@ -236,7 +236,7 @@ fn setup(
         .and(query.clone())
         .map(|txid: Txid, query: Arc<Query>| {
             let proof = query.get_tx_proof(&txid)?;
-            Ok(hex::encode(proof))
+            Ok(proof.to_hex())
         })
         .map(handle_error);
 
diff --git a/src/query.rs b/src/query.rs
index 1769709..19d245f 100644
--- a/src/query.rs
+++ b/src/query.rs
@@ -7,6 +7,7 @@ use serde::Serialize;
 use serde_json::Value;
 
 use bitcoin::{BlockHash, BlockHeader, Network, OutPoint, Transaction, Txid};
+use bitcoin_hashes::hex::FromHex;
 use bitcoincore_rpc::{json as rpcjson, Client as RpcClient, RpcApi};
 
 use crate::error::{BwtError, Context, OptionExt, Result};
@@ -184,7 +185,7 @@ impl Query {
         // and is incompatible with pruning, but works for non-wallet transactions too.
         else {
             let tx_hex = self.rpc.get_raw_transaction_hex(txid, None)?;
-            Ok(hex::decode(tx_hex)?)
+            Ok(Vec::from_hex(&tx_hex)?)
         }
     }
 
@@ -204,8 +205,8 @@ impl Query {
 
     pub fn broadcast(&self, tx_hex: &str) -> Result<Txid> {
         if let Some(broadcast_cmd) = &self.config.broadcast_cmd {
-            // need to deserialize to ensure validity (preventing code injection) and to determine the txid
-            let tx: Transaction = bitcoin::consensus::deserialize(&hex::decode(tx_hex)?)?;
+            // re-serialize the tx to ensure validity (preventing potential code injection) and to determine the txid
+            let tx: Transaction = bitcoin::consensus::deserialize(&Vec::from_hex(tx_hex)?)?;
             let cmd = broadcast_cmd.replacen("{tx_hex}", tx_hex, 1);
             debug!("broadcasting tx with cmd {}", broadcast_cmd);
             let status = Command::new("sh").arg("-c").arg(cmd).status()?;