diff --git a/cluster.go b/cluster.go
index f8f2d18e..a5ec8e66 100644
--- a/cluster.go
+++ b/cluster.go
@@ -272,7 +272,7 @@ func (c *clusterClient) _refresh() (err error) {
 			nodesCount := len(g.nodes)
 			for _, slot := range g.slots {
 				for i := slot[0]; i <= slot[1]; i++ {
-					pslots[i] = conns[g.nodes[1+util.IntN(nodesCount-1)]].conn
+					pslots[i] = conns[g.nodes[1+util.FastRand(nodesCount-1)]].conn
 				}
 			}
 		case c.rOpt != nil: // implies c.opt.SendToReplicas != nil
@@ -283,7 +283,7 @@ func (c *clusterClient) _refresh() (err error) {
 				for _, slot := range g.slots {
 					for i := slot[0]; i <= slot[1]; i++ {
 						pslots[i] = conns[master].conn
-						rslots[i] = conns[g.nodes[1+util.IntN(len(g.nodes)-1)]].conn
+						rslots[i] = conns[g.nodes[1+util.FastRand(len(g.nodes)-1)]].conn
 					}
 				}
 			} else {
diff --git a/internal/util/rand.1.22.go b/internal/util/rand.1.22.go
index 687ca293..87dbcc95 100644
--- a/internal/util/rand.1.22.go
+++ b/internal/util/rand.1.22.go
@@ -12,15 +12,11 @@ func Shuffle(n int, swap func(i, j int)) {
 	rand.Shuffle(n, swap)
 }
 
-func IntN(n int) int {
-	return rand.IntN(n)
-}
-
 func FastRand(n int) int {
 	return rand.IntN(n)
 }
 
-func BinaryString() []byte {
+func RandomBytes() []byte {
 	val := make([]byte, 24)
 	binary.BigEndian.PutUint64(val[0:8], rand.Uint64())
 	binary.BigEndian.PutUint64(val[8:16], rand.Uint64())
diff --git a/internal/util/rand.go b/internal/util/rand.go
index a197f482..8ec00c4b 100644
--- a/internal/util/rand.go
+++ b/internal/util/rand.go
@@ -20,10 +20,6 @@ func Shuffle(n int, swap func(i, j int)) {
 	rand.Shuffle(n, swap)
 }
 
-func IntN(n int) int {
-	return rand.Intn(n)
-}
-
 var rngPool = sync.Pool{
 	New: func() any {
 		return rand.New(rand.NewSource(time.Now().UnixNano()))
@@ -37,7 +33,7 @@ func FastRand(n int) (r int) {
 	return
 }
 
-func BinaryString() []byte {
+func RandomBytes() []byte {
 	val := make([]byte, 24)
 	src := sources.Get().(rand.Source64)
 	binary.BigEndian.PutUint64(val[0:8], src.Uint64())
diff --git a/internal/util/rand_test.go b/internal/util/rand_test.go
index be45f8c4..12589a76 100644
--- a/internal/util/rand_test.go
+++ b/internal/util/rand_test.go
@@ -4,7 +4,6 @@ import (
 	"testing"
 )
 
-// TestShuffle tests the Shuffle function.
 func TestShuffle(t *testing.T) {
 	arr := []int{0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
 	Shuffle(len(arr), func(i, j int) {
@@ -15,16 +14,6 @@ func TestShuffle(t *testing.T) {
 	}
 }
 
-// TestIntN tests the IntN function.
-func TestIntN(t *testing.T) {
-	n := 10
-	res := IntN(n)
-	if res < 0 || res >= n {
-		t.Errorf("Expected result between 0 and %d, got %d", n-1, res)
-	}
-}
-
-// TestFastRand tests the FastRand function.
 func TestFastRand(t *testing.T) {
 	n := 10
 	res := FastRand(n)
@@ -33,9 +22,8 @@ func TestFastRand(t *testing.T) {
 	}
 }
 
-// TestRandomBinaryString tests the RandomBinaryString function.
-func TestRandomBinaryString(t *testing.T) {
-	val := BinaryString()
+func TestRandomBytes(t *testing.T) {
+	val := RandomBytes()
 	if len(val) != 24 {
 		t.Errorf("Expected length 24, got %d", len(val))
 	}
diff --git a/rueidislock/lock.go b/rueidislock/lock.go
index 7d051b0b..3b211414 100644
--- a/rueidislock/lock.go
+++ b/rueidislock/lock.go
@@ -133,7 +133,7 @@ func makegate(size int32) *gate {
 }
 
 func random() string {
-	return rueidis.BinaryString(util.BinaryString())
+	return rueidis.BinaryString(util.RandomBytes())
 }
 
 func keyname(prefix, name string, i int32) string {
diff --git a/sentinel.go b/sentinel.go
index 7881d5a3..c8b7ae14 100644
--- a/sentinel.go
+++ b/sentinel.go
@@ -435,7 +435,7 @@ func pickReplica(resp []RedisResult) (string, error) {
 	}
 
 	// choose a replica randomly
-	m := eligible[util.IntN(len(eligible))]
+	m := eligible[util.FastRand(len(eligible))]
 	return net.JoinHostPort(m["ip"], m["port"]), nil
 }