diff --git a/handler/router.go b/handler/router.go
index 6e54b92..0f3a539 100644
--- a/handler/router.go
+++ b/handler/router.go
@@ -8,7 +8,7 @@ import (
 	"webp_server_go/config"
 	"webp_server_go/encoder"
 	"webp_server_go/helper"
-
+	"slices"
 	"path"
 	"strconv"