diff --git a/model/session.go b/model/session.go
index 536d823..eade844 100644
--- a/model/session.go
+++ b/model/session.go
@@ -5,7 +5,7 @@ import "time"
 type Session struct {
 	Uid       string    `json:"uid"`
 	Name      string    `json:"name"`
-	Type      int8      `json:"type"`
+	Type      int16     `json:"type"`
 	Token     string    `json:"token"`
 	ExpiresAt time.Time `json:"expiresAt" time_format:"simple_datetime" time_location:"shanghai"`
 }