diff --git a/prepare_attach_file.go b/prepare_attach_file.go
index 46b0622..3fcda84 100644
--- a/prepare_attach_file.go
+++ b/prepare_attach_file.go
@@ -5,6 +5,7 @@ import (
 	"crypto/sha256"
 	"encoding/hex"
 	"fmt"
+	"os"
 	"strconv"
 	"time"
 
@@ -58,7 +59,7 @@ func prepareAttachFile(err error, client *nex.Client, callID uint32, dataStoreAt
 	pReqPostInfo := nexproto.NewDataStoreReqPostInfo()
 
 	pReqPostInfo.DataID = dataStoreAttachFileParam.ReferDataID
-	pReqPostInfo.URL = "http://datastore.pretendo.cc/upload"
+	pReqPostInfo.URL = os.Getenv("DATASTORE_UPLOAD_URL")
 	pReqPostInfo.RequestHeaders = []*nexproto.DataStoreKeyValue{}
 	pReqPostInfo.FormFields = []*nexproto.DataStoreKeyValue{fieldBucket, fieldKey, fieldACL, fieldContentType, fieldPID, fieldDate, fieldSignature}
 	pReqPostInfo.RootCACert = []byte{}
diff --git a/prepare_post_object.go b/prepare_post_object.go
index 192cb07..5875537 100644
--- a/prepare_post_object.go
+++ b/prepare_post_object.go
@@ -6,6 +6,7 @@ import (
 	"encoding/hex"
 	"fmt"
 	"math/rand"
+	"os"
 	"strconv"
 	"time"
 
@@ -77,7 +78,7 @@ func preparePostObject(err error, client *nex.Client, callID uint32, param *nexp
 	pReqPostInfo := nexproto.NewDataStoreReqPostInfo()
 
 	pReqPostInfo.DataID = dataID
-	pReqPostInfo.URL = "http://datastore.pretendo.cc/upload"
+	pReqPostInfo.URL = os.Getenv("DATASTORE_UPLOAD_URL")
 	pReqPostInfo.RequestHeaders = []*nexproto.DataStoreKeyValue{}
 	pReqPostInfo.FormFields = []*nexproto.DataStoreKeyValue{fieldBucket, fieldKey, fieldACL, fieldPID, fieldDate, fieldSignature}
 	pReqPostInfo.RootCACert = []byte{}