diff --git a/sql/upgrade/1.4.0_schema/postgresql/dolphinscheduler_ddl.sql b/sql/upgrade/1.4.0_schema/postgresql/dolphinscheduler_ddl.sql
index 0fadd71d66731d233a78f583ec87e0dac242a9a9..21a82b2513ed122243e51031e562a646b93582e2 100644
--- a/sql/upgrade/1.4.0_schema/postgresql/dolphinscheduler_ddl.sql
+++ b/sql/upgrade/1.4.0_schema/postgresql/dolphinscheduler_ddl.sql
@@ -276,7 +276,7 @@ BEGIN
           WHERE relname='t_ds_alertgroup'
                             AND indexrelname ='t_ds_alertgroup_name_UN')
       THEN
-         ALTER TABLE t_ds_process_definition ADD CONSTRAINT t_ds_alertgroup_name_UN UNIQUE (group_name);
+         ALTER TABLE t_ds_alertgroup ADD CONSTRAINT t_ds_alertgroup_name_UN UNIQUE (group_name);
        END IF;
 END;
 $$ LANGUAGE plpgsql;
@@ -294,7 +294,7 @@ BEGIN
           WHERE relname='t_ds_datasource'
                             AND indexrelname ='t_ds_datasource_name_UN')
       THEN
-         ALTER TABLE t_ds_process_definition ADD CONSTRAINT t_ds_datasource_name_UN UNIQUE (name, type);
+         ALTER TABLE t_ds_datasource ADD CONSTRAINT t_ds_datasource_name_UN UNIQUE (name, type);
        END IF;
 END;
 $$ LANGUAGE plpgsql;