diff --git a/pkg/cache/cache.go b/pkg/cache/cache.go
index 552c7d9..738667c 100644
--- a/pkg/cache/cache.go
+++ b/pkg/cache/cache.go
@@ -4,35 +4,20 @@ import (
 	"polaris/log"
 	"polaris/pkg/utils"
 	"time"
-
-	"github.com/robfig/cron"
 )
 
 func NewCache[T comparable, S any](timeout time.Duration) *Cache[T, S] {
 	c := &Cache[T, S]{
 		m:       utils.Map[T, inner[S]]{},
 		timeout: timeout,
-		cr:      cron.New(),
 	}
 
-	c.cr.AddFunc("@ervery 1m", func() {
-		c.m.Range(func(key T, value inner[S]) bool {
-			if time.Since(value.t) > c.timeout {
-				log.Debugf("delete old cache: %v", key)
-				c.m.Delete(key)
-
-			}
-			return true
-		})
-	})
-	c.cr.Start()
 	return c
 }
 
 type Cache[T comparable, S any] struct {
 	m       utils.Map[T, inner[S]]
 	timeout time.Duration
-	cr      *cron.Cron
 }
 
 type inner[S any] struct {
@@ -45,6 +30,15 @@ func (c *Cache[T, S]) Set(key T, value S) {
 }
 
 func (c *Cache[T, S]) Get(key T) (S, bool) {
+	c.m.Range(func(key T, value inner[S]) bool {
+		if time.Since(value.t) > c.timeout {
+			log.Debugf("delete old cache: %v", key)
+			c.m.Delete(key)
+
+		}
+		return true
+	})
+
 	v, ok := c.m.Load(key)
 	if !ok {
 		return getZero[S](), ok