diff --git a/ctxc/fetcher/tx_fetcher.go b/ctxc/fetcher/tx_fetcher.go
index a5338501fa..01f74d51dc 100644
--- a/ctxc/fetcher/tx_fetcher.go
+++ b/ctxc/fetcher/tx_fetcher.go
@@ -54,7 +54,7 @@ const (
 	maxTxUnderpricedSetSize = 32768
 
 	// maxTxUnderpricedTimeout is the max time a transaction should be stuck in the underpriced set.
-	maxTxUnderpricedTimeout = int64(5 * time.Minute)
+	maxTxUnderpricedTimeout = 5 * time.Minute
 
 	// txArriveTimeout is the time allowance before an announced transaction is
 	// explicitly requested.
@@ -151,7 +151,7 @@ type TxFetcher struct {
 	drop    chan *txDrop
 	quit    chan struct{}
 
-	underpriced *lru.Cache[common.Hash, int64] // Transactions discarded as too cheap (don't re-fetch)
+	underpriced *lru.Cache[common.Hash, time.Time] // Transactions discarded as too cheap (don't re-fetch)
 
 	// Stage 1: Waiting lists for newly discovered transactions that might be
 	// broadcast without needing explicit request/reply round trips.
@@ -205,7 +205,7 @@ func NewTxFetcherForTests(
 		fetching:    make(map[common.Hash]string),
 		requests:    make(map[string]*txRequest),
 		alternates:  make(map[common.Hash]map[string]struct{}),
-		underpriced: lru.NewCache[common.Hash, int64](maxTxUnderpricedSetSize),
+		underpriced: lru.NewCache[common.Hash, time.Time](maxTxUnderpricedSetSize),
 		hasTx:       hasTx,
 		addTxs:      addTxs,
 		fetchTxs:    fetchTxs,
@@ -263,7 +263,7 @@ func (f *TxFetcher) Notify(peer string, hashes []common.Hash) error {
 // isKnownUnderpriced reports whether a transaction hash was recently found to be underpriced.
 func (f *TxFetcher) isKnownUnderpriced(hash common.Hash) bool {
 	prevTime, ok := f.underpriced.Peek(hash)
-	if ok && prevTime+maxTxUnderpricedTimeout < time.Now().Unix() {
+	if ok && prevTime.Before(time.Now().Add(-maxTxUnderpricedTimeout)) {
 		f.underpriced.Remove(hash)
 		return false
 	}
@@ -312,7 +312,7 @@ func (f *TxFetcher) Enqueue(peer string, txs []*types.Transaction, direct bool)
 			// Avoid re-request this transaction when we receive another
 			// announcement.
 			if errors.Is(err, txpool.ErrUnderpriced) || errors.Is(err, txpool.ErrReplaceUnderpriced) {
-				f.underpriced.Add(batch[j].Hash(), batch[j].Time().Unix())
+				f.underpriced.Add(batch[j].Hash(), batch[j].Time())
 			}
 			// Track a few interesting failure types
 			switch {