diff --git a/model/user_cache.go b/model/user_cache.go
index 87fa973a..a631457c 100644
--- a/model/user_cache.go
+++ b/model/user_cache.go
@@ -1,7 +1,6 @@
 package model
 
 import (
-	"encoding/json"
 	"fmt"
 	"one-api/common"
 	"one-api/constant"