diff --git a/internal/database/cache/cache_memory.go b/internal/database/cache/cache_memory.go
index ab59a7d..a6896fd 100644
--- a/internal/database/cache/cache_memory.go
+++ b/internal/database/cache/cache_memory.go
@@ -2,6 +2,7 @@ package cache
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"time"
 	"ultone/internal/interfaces"
@@ -18,6 +19,10 @@ type _mem struct {
 func (m *_mem) Get(ctx context.Context, key string) ([]byte, error) {
 	v, err := m.client.Get(key)
 	if err != nil {
+		if errors.Is(err, gredis.ErrKeyNotFound) {
+			return nil, ErrorKeyNotFound
+		}
+
 		return nil, err
 	}
 
@@ -32,6 +37,10 @@ func (m *_mem) Get(ctx context.Context, key string) ([]byte, error) {
 func (m *_mem) GetEx(ctx context.Context, key string, duration time.Duration) ([]byte, error) {
 	v, err := m.client.GetEx(key, duration)
 	if err != nil {
+		if errors.Is(err, gredis.ErrKeyNotFound) {
+			return nil, ErrorKeyNotFound
+		}
+
 		return nil, err
 	}
 
diff --git a/internal/database/cache/cache_redis.go b/internal/database/cache/cache_redis.go
index f11f604..6edfa3d 100644
--- a/internal/database/cache/cache_redis.go
+++ b/internal/database/cache/cache_redis.go
@@ -2,6 +2,7 @@ package cache
 
 import (
 	"context"
+	"errors"
 	"github.com/go-redis/redis/v8"
 	"time"
 )
@@ -13,6 +14,10 @@ type _redis struct {
 func (r *_redis) Get(ctx context.Context, key string) ([]byte, error) {
 	result, err := r.client.Get(ctx, key).Result()
 	if err != nil {
+		if errors.Is(err, redis.Nil) {
+			return nil, ErrorKeyNotFound
+		}
+
 		return nil, err
 	}
 
@@ -22,6 +27,10 @@ func (r *_redis) Get(ctx context.Context, key string) ([]byte, error) {
 func (r *_redis) GetEx(ctx context.Context, key string, duration time.Duration) ([]byte, error) {
 	result, err := r.client.GetEx(ctx, key, duration).Result()
 	if err != nil {
+		if errors.Is(err, redis.Nil) {
+			return nil, ErrorKeyNotFound
+		}
+
 		return nil, err
 	}
 
diff --git a/internal/middleware/auth/auth.go b/internal/middleware/auth/auth.go
index a8adc7b..a624fea 100644
--- a/internal/middleware/auth/auth.go
+++ b/internal/middleware/auth/auth.go
@@ -2,12 +2,11 @@ package auth
 
 import (
 	"errors"
-	"gitea.com/taozitaozi/gredis"
-	"github.com/go-redis/redis/v8"
 	"github.com/loveuer/nf"
 	"github.com/loveuer/nf/nft/resp"
 	"strings"
 	"ultone/internal/controller"
+	"ultone/internal/database/cache"
 	"ultone/internal/log"
 	"ultone/internal/opt"
 )
@@ -36,7 +35,7 @@ func NewAuth() nf.HandlerFunc {
 		target, err := controller.UserController.GetUserByToken(c.Context(), token)
 		if err != nil {
 			log.Error(c.Context(), "middleware.NewAuth: get user by token=%s err=%v", token, err)
-			if errors.Is(err, redis.Nil) || errors.Is(err, gredis.ErrKeyNotFound) {
+			if errors.Is(err, cache.ErrorKeyNotFound) {
 				return resp.Resp401(c, err)
 			}