diff --git a/db/update18.3.sql b/db/update18.3.sql
index 6b4a0a56fe..3ac831643c 100644
--- a/db/update18.3.sql
+++ b/db/update18.3.sql
@@ -700,6 +700,7 @@ CHANGE `assignedTo` `assignedTo` varchar(30) NOT NULL DEFAULT '',
 CHANGE `reviewers` `reviewers` text NULL;
 
 ALTER TABLE `zt_pipeline`
+CHANGE `password` `password` varchar(255) NULL,
 CHANGE `editedBy` `editedBy` varchar(30) NOT NULL DEFAULT '',
 CHANGE `editedDate` `editedDate` datetime NULL;
 
diff --git a/db/zentao.sql b/db/zentao.sql
index 4b13c0b5f1..530e9fc7ce 100755
--- a/db/zentao.sql
+++ b/db/zentao.sql
@@ -1188,11 +1188,11 @@ CREATE TABLE IF NOT EXISTS `zt_pipeline` (
   `id` smallint(8) unsigned NOT NULL AUTO_INCREMENT,
   `type` char(30) NOT NULL,
   `name` varchar(50) NOT NULL,
-  `url` varchar(255) DEFAULT NULL,
-  `account` varchar(30) DEFAULT NULL,
-  `password` varchar(255) NOT NULL,
-  `token` varchar(255) DEFAULT NULL,
-  `private` char(32) DEFAULT NULL,
+  `url` varchar(255) NULL,
+  `account` varchar(30) NULL,
+  `password` varchar(255) NULL,
+  `token` varchar(255) NULL,
+  `private` char(32) NULL,
   `createdBy` varchar(30) NOT NULL,
   `createdDate` datetime NOT NULL,
   `editedBy` varchar(30) NOT NULL DEFAULT '',