diff --git a/src/lib.rs b/src/lib.rs
index 075b5f1..12efcbe 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -9,33 +9,34 @@
 // See: https://github.com/mcarton/rust-derivative/issues/115
 #![allow(clippy::non_canonical_partial_ord_impl, unused_imports)]
 
-use arbitrary::{Arbitrary, Unstructured};
-use bitvec::vec::BitVec;
+#[cfg(feature = "ark-serialize")]
+use core::fmt::{self, Display, Formatter};
 use core::marker::PhantomData;
-use derivative::Derivative;
-use derive_more::{AsRef, Into};
-use sha3::digest::{
-    crypto_common::generic_array::{ArrayLength, GenericArray},
-    Digest,
-};
-use sha3::Keccak256;
+#[cfg(feature = "ark-serialize")]
+use core::str::FromStr;
 use std::{
     convert::{TryFrom, TryInto},
     fmt::Debug,
     hash::Hash,
 };
 
+use arbitrary::{Arbitrary, Unstructured};
 #[cfg(feature = "ark-serialize")]
 use ark_serialize::{CanonicalDeserialize, CanonicalSerialize};
-#[cfg(feature = "ark-serialize")]
-use core::fmt::{self, Display, Formatter};
-#[cfg(feature = "ark-serialize")]
-use core::str::FromStr;
-#[cfg(feature = "ark-serialize")]
-use tagged_base64::{Tagged, TaggedBase64, Tb64Error};
-
+use bitvec::vec::BitVec;
+use derivative::Derivative;
+use derive_more::{AsRef, Into};
 #[cfg(feature = "serde")]
 use serde::{Deserialize, Serialize};
+use sha3::{
+    digest::{
+        crypto_common::generic_array::{ArrayLength, GenericArray},
+        Digest,
+    },
+    Keccak256,
+};
+#[cfg(feature = "ark-serialize")]
+use tagged_base64::{Tagged, TaggedBase64, Tb64Error};
 
 type Array = [u8; 32];
 
@@ -56,13 +57,13 @@ pub trait Committable {
 #[derive(Derivative, AsRef, Into)]
 #[derivative(
     Copy(bound = ""),
-    Debug(bound = ""),
     PartialEq(bound = ""),
     Eq(bound = ""),
     PartialOrd(bound = ""),
     Ord(bound = ""),
     Hash(bound = "")
 )]
+#[cfg_attr(not(feature = "ark-serialize"), derivative(Debug(bound = "")))]
 #[cfg_attr(feature = "serde", derive(Deserialize, Serialize))]
 #[cfg_attr(
     feature = "serde",
@@ -207,6 +208,13 @@ impl<T: ?Sized + Committable> From<&Commitment<T>> for TaggedBase64 {
     }
 }
 
+#[cfg(feature = "ark-serialize")]
+impl<T: ?Sized + Committable> Debug for Commitment<T> {
+    fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
+        <Self as Display>::fmt(self, f)
+    }
+}
+
 #[cfg(feature = "ark-serialize")]
 impl<T: ?Sized + Committable> Display for Commitment<T> {
     fn fmt(&self, f: &mut Formatter<'_>) -> fmt::Result {
@@ -313,9 +321,10 @@ impl<T: Committable> RawCommitmentBuilder<T> {
 
 #[cfg(all(test, feature = "ark-serialize", feature = "serde"))]
 mod test {
-    use super::*;
     use std::{fmt::Debug, hash::Hash};
 
+    use super::*;
+
     struct DummyCommittable;
     impl Committable for DummyCommittable {
         fn commit(&self) -> Commitment<Self> {
@@ -413,9 +422,10 @@ mod test {
 
 #[cfg(test)]
 mod test_quickcheck {
-    use super::INVALID_UTF8;
     use quickcheck_macros::quickcheck;
 
+    use super::INVALID_UTF8;
+
     #[quickcheck]
     fn invalid_utf8_is_invalid(pref: Vec<u8>, suff: Vec<u8>) {
         let s = pref