4 files changed, 10 insertions, 6 deletions
diff --git a/ext/kv/Cargo.toml b/ext/kv/Cargo.toml
index 3cf265213..1ff556433 100644
--- a/ext/kv/Cargo.toml
+++ b/ext/kv/Cargo.toml
@@ -26,7 +26,7 @@ deno_unsync = "0.1.1"
 denokv_proto.workspace = true
 denokv_remote.workspace = true
 denokv_sqlite.workspace = true
-hex.workspace = true
+faster-hex.workspace = true
 log.workspace = true
 num-bigint.workspace = true
 prost.workspace = true
diff --git a/ext/kv/lib.rs b/ext/kv/lib.rs
index 3a868d463..72e1cab30 100644
--- a/ext/kv/lib.rs
+++ b/ext/kv/lib.rs
@@ -12,6 +12,7 @@ use std::num::NonZeroU32;
 use std::rc::Rc;
 use std::time::Duration;
 
+use anyhow::bail;
 use base64::prelude::BASE64_URL_SAFE;
 use base64::Engine;
 use chrono::DateTime;
@@ -234,7 +235,7 @@ impl TryFrom<KvEntry> for ToV8KvEntry {
         .map(key_part_to_v8)
         .collect(),
       value: entry.value.into(),
-      versionstamp: hex::encode(entry.versionstamp).into(),
+      versionstamp: faster_hex::hex_string(&entry.versionstamp).into(),
     })
   }
 }
@@ -511,7 +512,10 @@ fn check_from_v8(value: V8KvCheck) -> Result<Check, AnyError> {
   let versionstamp = match value.1 {
     Some(data) => {
       let mut out = [0u8; 10];
-      hex::decode_to_slice(data, &mut out)
+      if data.len() != out.len() * 2 {
+        bail!(type_error("invalid versionstamp"));
+      }
+      faster_hex::hex_decode(&data, &mut out)
         .map_err(|_| type_error("invalid versionstamp"))?;
       Some(out)
     }
@@ -856,7 +860,7 @@ where
 
   let result = db.atomic_write(atomic_write).await?;
 
-  Ok(result.map(|res| hex::encode(res.versionstamp)))
+  Ok(result.map(|res| faster_hex::hex_string(&res.versionstamp)))
 }
 
 // (prefix, start, end)
diff --git a/ext/node/Cargo.toml b/ext/node/Cargo.toml
index cd03c53fe..3f417bb01 100644
--- a/ext/node/Cargo.toml
+++ b/ext/node/Cargo.toml
@@ -32,8 +32,8 @@ dsa = "0.6.1"
 ecb.workspace = true
 elliptic-curve.workspace = true
 errno = "0.2.8"
+faster-hex.workspace = true
 h2 = { version = "0.3.17", features = ["unstable"] }
-hex.workspace = true
 hkdf.workspace = true
 http_v02.workspace = true
 idna = "0.3.0"
diff --git a/ext/node/ops/crypto/mod.rs b/ext/node/ops/crypto/mod.rs
index f73d96580..39d6b8bd5 100644
--- a/ext/node/ops/crypto/mod.rs
+++ b/ext/node/ops/crypto/mod.rs
@@ -163,7 +163,7 @@ pub fn op_node_hash_digest_hex(
   let context = Rc::try_unwrap(context)
     .map_err(|_| type_error("Hash context is already in use"))?;
   let digest = context.digest()?;
-  Ok(hex::encode(digest))
+  Ok(faster_hex::hex_string(&digest))
 }
 
 #[op2(fast)]