diff --git a/express_tool/express_cache.go b/express_tool/express_cache.go
index 18d3530..50a0354 100644
--- a/express_tool/express_cache.go
+++ b/express_tool/express_cache.go
@@ -6,7 +6,7 @@ import (
 )
 
 type ICacheAdapter interface {
-	Set(ctx context.Context, number string, res string, ttl time.Duration) error
-	Get(ctx context.Context, number string) (*ExpressRes, error)
-	Del(ctx context.Context, number string) error
+	Set(ctx context.Context, key string, res string, ttl time.Duration) error
+	Get(ctx context.Context, key string) (*ExpressRes, error)
+	Del(ctx context.Context, key string) error
 }