diff --git a/go.mod b/go.mod
index de94bc4..1e002f6 100644
--- a/go.mod
+++ b/go.mod
@@ -2,7 +2,10 @@ module github.com/yuninks/lockx
 
 go 1.20
 
-require github.com/go-redis/redis/v8 v8.11.5
+require (
+	github.com/go-redis/redis/v8 v8.11.5
+	github.com/google/uuid v1.6.0
+)
 
 require (
 	github.com/cespare/xxhash/v2 v2.1.2 // indirect
diff --git a/go.sum b/go.sum
index 7342ff8..735ea23 100644
--- a/go.sum
+++ b/go.sum
@@ -5,6 +5,8 @@ github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f/go.mod h1:cu
 github.com/fsnotify/fsnotify v1.4.9 h1:hsms1Qyu0jgnwNXIxa+/V/PDsU6CfLf6CNO8H7IWoS4=
 github.com/go-redis/redis/v8 v8.11.5 h1:AcZZR7igkdvfVmQTPnu9WE37LRrO/YrBH5zWyjDC0oI=
 github.com/go-redis/redis/v8 v8.11.5/go.mod h1:gREzHqY1hg6oD9ngVRbLStwAWKhA0FEgq8Jd4h5lpwo=
+github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
+github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/nxadm/tail v1.4.8 h1:nPr65rt6Y5JFSKQO7qToXr7pePgD6Gwiw05lkbyAQTE=
 github.com/onsi/ginkgo v1.16.5 h1:8xi0RTUf59SOSfEtZMvwTvXYMzG4gV23XVHOZiXNtnE=
 github.com/onsi/gomega v1.18.1 h1:M1GfJqGRrBrrGGsbxzV5dqM2U2ApXefZCQpkukxYRLE=
diff --git a/lockx.go b/lockx.go
index 4895024..7699355 100644
--- a/lockx.go
+++ b/lockx.go
@@ -2,10 +2,10 @@ package lockx
 
 import (
 	"context"
-	"fmt"
 	"time"
 
 	"github.com/go-redis/redis/v8"
+	"github.com/google/uuid"
 )
 
 // 全局锁
@@ -17,16 +17,17 @@ type globalLock struct {
 	value     string
 }
 
-
-
 func NewGlobalLock(ctx context.Context, red redis.UniversalClient, uniqueKey string) *globalLock {
 	ctx, cancel := context.WithTimeout(ctx, opt.lockTimeout)
+
+	u, _ := uuid.NewV7()
+
 	return &globalLock{
 		redis:     red,
 		ctx:       ctx,
 		cancel:    cancel,
 		uniqueKey: uniqueKey,
-		value:     fmt.Sprintf("%d", time.Now().UnixNano()),
+		value:     u.String(),
 	}
 }
 
diff --git a/lockx_test.go b/lockx_test.go
index fde321d..a223205 100644
--- a/lockx_test.go
+++ b/lockx_test.go
@@ -3,10 +3,11 @@ package lockx_test
 import (
 	"context"
 	"fmt"
+	"sync"
 	"testing"
 
-	"github.com/yuninks/lockx"
 	"github.com/go-redis/redis/v8"
+	"github.com/yuninks/lockx"
 )
 
 var Redis *redis.Client
@@ -28,8 +29,8 @@ var Redis *redis.Client
 func TestLockx(t *testing.T) {
 	client := redis.NewClient(&redis.Options{
 		Addr:     "127.0.0.1" + ":" + "6379",
-		Password: "", // no password set
-		DB:       0,  // use default DB
+		Password: "123456", // no password set
+		DB:       0,        // use default DB
 	})
 	if client == nil {
 		fmt.Println("redis init error")
@@ -40,13 +41,21 @@ func TestLockx(t *testing.T) {
 	ctx, cancel := context.WithCancel(ctx)
 	defer cancel()
 
-	lock := lockx.NewGlobalLock(ctx, client, "lockx:test")
+	wg := sync.WaitGroup{}
 
-	if !lock.Lock() {
-		fmt.Println("lock error")
+	for i := 0; i < 10000; i++ {
+		wg.Add(1)
+		go func(i int) {
+			defer wg.Done()
+			lock := lockx.NewGlobalLock(ctx, client, "lockx:test")
+			defer lock.Unlock()
+			if !lock.Lock() {
+				fmt.Println("lock error", i)
+				return
+			}
+			fmt.Println("ssss", i)
+		}(i)
 	}
-	defer lock.Unlock()
-
-	fmt.Println("ssss")
 
+	wg.Wait()
 }