diff --git a/core/txpool/legacypool/list.go b/core/txpool/legacypool/list.go
index c0efa3f20a..539c0c95ae 100644
--- a/core/txpool/legacypool/list.go
+++ b/core/txpool/legacypool/list.go
@@ -125,6 +125,9 @@ func (m *SortedMap) Filter(filter func(*types.Transaction) bool) types.Transacti
 func (m *SortedMap) reheap() {
 	*m.index = slices.Collect(maps.Keys(m.items))
 	heap.Init(m.index)
+	m.cacheMu.Lock()
+	m.cache = nil
+	m.cacheMu.Unlock()
 }
 
 // filter is identical to Filter, but **does not** regenerate the heap. This method