diff --git a/workflow-engine-core/src/main/resources/sql/upgrade_to_1.4.2.sql b/workflow-engine-core/src/main/resources/sql/upgrade_to_1.4.2.sql
index fd73d58e1..19f94326e 100644
--- a/workflow-engine-core/src/main/resources/sql/upgrade_to_1.4.2.sql
+++ b/workflow-engine-core/src/main/resources/sql/upgrade_to_1.4.2.sql
@@ -12,8 +12,8 @@ create table `workflow-engine`.ext_ax_process_log
     advice              varchar(4000) default ''                not null comment '操作建议',
     operation_desc      varchar(4000) default ''                not null comment '操作描述',
     assignee            varchar(1024) default ''                not null comment '审批人',
-    start_time          datetime(3)   default CURRENT_TIMESTAMP not null comment '任务开始时间',
-    end_time            datetime(3)                             null comment '任务结束时间',
+    start_time datetime(3) default CURRENT_TIMESTAMP(3) not null comment '任务开始时间',
+    end_time   datetime(3)                              null comment '任务结束时间',
     returned            tinyint(1)    default 0                 not null comment '已回退',
     status              varchar(16)   default ''                not null comment '任务状态:审批中/通过/驳回/转交/加签',
     create_at           datetime      default CURRENT_TIMESTAMP not null comment '创建时间',
@@ -21,6 +21,3 @@ create table `workflow-engine`.ext_ax_process_log
     is_delete           bigint        default 0                 not null comment '是否删除'
 )
     comment '审批日志持久化';
-
-
-