diff --git a/proxy/sensorItem/sensorItem.go b/proxy/sensorItem/sensorItem.go
index 26027bc..67baada 100644
--- a/proxy/sensorItem/sensorItem.go
+++ b/proxy/sensorItem/sensorItem.go
@@ -5,7 +5,7 @@ import (
 	"git.loafle.net/overflow/overflow_proxy_service/proxy/crawler"
 	"git.loafle.net/overflow/overflow_proxy_service/proxy/sensorItemCategory"
 	"git.loafle.net/overflow/overflow_proxy_service/proxy/utils"
-	"github.com/golang/protobuf/ptypes/timestamp"
+	"git.loafle.net/overflow/commons_go/model/timestamp"
 )
 
 type SensorItem struct {