diff --git a/crypto/frost/src/curve/mod.rs b/crypto/frost/src/curve/mod.rs
index ea8c8696..5d8cf791 100644
--- a/crypto/frost/src/curve/mod.rs
+++ b/crypto/frost/src/curve/mod.rs
@@ -6,7 +6,7 @@ use rand::{RngCore, CryptoRng};
 use zeroize::{Zeroize, Zeroizing};
 use subtle::ConstantTimeEq;
 
-use digest::Digest;
+use digest::{Digest, Output};
 
 use group::{
   ff::{Field, PrimeField},
@@ -41,8 +41,8 @@ pub trait Curve: Ciphersuite {
   const CONTEXT: &'static [u8];
 
   /// Hash the given dst and data to a byte vector. Used to instantiate H4 and H5.
-  fn hash_to_vec(dst: &[u8], data: &[u8]) -> Vec<u8> {
-    Self::H::digest([Self::CONTEXT, dst, data].concat()).as_ref().to_vec()
+  fn hash(dst: &[u8], data: &[u8]) -> Output<Self::H> {
+    Self::H::digest([Self::CONTEXT, dst, data].concat())
   }
 
   /// Field element from hash. Used during key gen and by other crates under Serai as a general
@@ -53,13 +53,13 @@ pub trait Curve: Ciphersuite {
   }
 
   /// Hash the message for the binding factor. H4 from the IETF draft.
-  fn hash_msg(msg: &[u8]) -> Vec<u8> {
-    Self::hash_to_vec(b"msg", msg)
+  fn hash_msg(msg: &[u8]) -> Output<Self::H> {
+    Self::hash(b"msg", msg)
   }
 
   /// Hash the commitments for the binding factor. H5 from the IETF draft.
-  fn hash_commitments(commitments: &[u8]) -> Vec<u8> {
-    Self::hash_to_vec(b"com", commitments)
+  fn hash_commitments(commitments: &[u8]) -> Output<Self::H> {
+    Self::hash(b"com", commitments)
   }
 
   /// Hash the commitments and message to calculate the binding factor. H1 from the IETF draft.