diff --git a/crates/relayer-types/src/timestamp.rs b/crates/relayer-types/src/timestamp.rs
index c3d3668e29..3cda62807f 100644
--- a/crates/relayer-types/src/timestamp.rs
+++ b/crates/relayer-types/src/timestamp.rs
@@ -1,7 +1,7 @@
 use crate::prelude::*;
 
 use core::fmt::{Display, Error as FmtError, Formatter};
-use core::hash::{Hash, Hasher};
+use core::hash::Hash;
 use core::num::ParseIntError;
 use core::ops::{Add, Sub};
 use core::str::FromStr;
@@ -21,21 +21,13 @@ pub const ZERO_DURATION: Duration = Duration::from_secs(0);
 /// a `u64` value and a raw timestamp. In protocol buffer, the timestamp is
 /// represented as a `u64` Unix timestamp in nanoseconds, with 0 representing the absence
 /// of timestamp.
-#[derive(PartialEq, Eq, Copy, Clone, Debug, Default, Deserialize, Serialize, PartialOrd, Ord)]
+#[derive(
+    Copy, Clone, Debug, Default, Deserialize, Serialize, PartialEq, Eq, PartialOrd, Ord, Hash,
+)]
 pub struct Timestamp {
     time: Option<Time>,
 }
 
-// TODO: derive when tendermint::Time supports it:
-// https://github.com/informalsystems/tendermint-rs/pull/1054
-#[allow(clippy::derived_hash_with_manual_eq)]
-impl Hash for Timestamp {
-    fn hash<H: Hasher>(&self, state: &mut H) {
-        let odt: Option<OffsetDateTime> = self.time.map(Into::into);
-        odt.hash(state);
-    }
-}
-
 /// The expiry result when comparing two timestamps.
 /// - If either timestamp is invalid (0), the result is `InvalidTimestamp`.
 /// - If the left timestamp is strictly after the right timestamp, the result is `Expired`.
@@ -43,7 +35,7 @@ impl Hash for Timestamp {
 ///
 /// User of this result may want to determine whether error should be raised,
 /// when either of the timestamp being compared is invalid.
-#[derive(PartialEq, Eq, Copy, Clone, Debug, Deserialize, Serialize, Hash)]
+#[derive(Copy, Clone, Debug, Deserialize, Serialize, PartialEq, Eq, Hash)]
 pub enum Expiry {
     Expired,
     NotExpired,
@@ -169,9 +161,9 @@ impl Display for Timestamp {
     fn fmt(&self, f: &mut Formatter<'_>) -> Result<(), FmtError> {
         write!(
             f,
-            "Timestamp({})",
+            "{}",
             self.time
-                .map_or("NoTimestamp".to_string(), |time| time.to_rfc3339())
+                .map_or_else(|| "NoTimestamp".to_string(), |time| time.to_rfc3339())
         )
     }
 }
diff --git a/crates/relayer/src/link/cli.rs b/crates/relayer/src/link/cli.rs
index 30d7ad55e7..3eee884e9a 100644
--- a/crates/relayer/src/link/cli.rs
+++ b/crates/relayer/src/link/cli.rs
@@ -3,6 +3,7 @@ use std::thread;
 use std::time::{Duration, Instant};
 
 use ibc_relayer_types::core::ics04_channel::packet::Sequence;
+use itertools::Itertools;
 use tracing::{error_span, info};
 
 use ibc_relayer_types::events::IbcEvent;
@@ -23,6 +24,7 @@ use crate::link::relay_path::RelayPath;
 use crate::link::relay_sender::SyncSender;
 use crate::link::Link;
 use crate::path::PathIdentifiers;
+use crate::util::collate::CollatedIterExt;
 use crate::util::pretty::{PrettyDuration, PrettySlice};
 
 impl<ChainA: ChainHandle, ChainB: ChainHandle> RelayPath<ChainA, ChainB> {
@@ -150,7 +152,7 @@ impl<ChainA: ChainHandle, ChainB: ChainHandle> Link<ChainA, ChainB> {
         info!(
             "{} unreceived acknowledgements found: {} ",
             sequences.len(),
-            PrettySlice(&sequences)
+            sequences.iter().copied().collated().format(", "),
         );
 
         let query_height = match packet_data_query_height {