diff --git a/server/light_backtask/task/vester.go b/server/light_backtask/task/vester.go
index 2a481419..57ca1c1f 100644
--- a/server/light_backtask/task/vester.go
+++ b/server/light_backtask/task/vester.go
@@ -126,7 +126,7 @@ func (this* vester) saveToDb(ds *f5.DataSet) bool {
 				whereKv,
 				[][]string{},
 				genInsertKv([][]string{
-					{"account_address", p.Account},
+					{"account_address", strings.ToLower(p.Account)},
 					{"deposit_amount", p.Amount},
 				}))
 			if err != nil {
@@ -144,7 +144,7 @@ func (this* vester) saveToDb(ds *f5.DataSet) bool {
 				whereKv,
 				[][]string{},
 				genInsertKv([][]string{
-					{"account_address", p.Account},
+					{"account_address", strings.ToLower(p.Account)},
 					{"withdraw_clamied_amount", p.ClaimedAmount},
 					{"withdraw_balance", p.Balance},
 				}))