diff --git a/src/test/regress/expected/misc_jiras.out b/src/test/regress/expected/misc_jiras.out
index ab418abb849..2c6d24f5a82 100644
--- a/src/test/regress/expected/misc_jiras.out
+++ b/src/test/regress/expected/misc_jiras.out
@@ -12,7 +12,7 @@ create schema misc_jiras;
 --
 create table misc_jiras.t1 (c1 int, c2 text, c3 smallint) distributed by (c1);
 insert into misc_jiras.t1 select i % 13, md5(i::text), i % 3
-  from generate_series(1, 40000) i;
+  from generate_series(1, 60000) i;
 -- tuplestore in windowagg uses statement_mem to control the in-memory data size,
 -- set a small value to trigger the spilling.
 set statement_mem to '1024kB';
@@ -44,7 +44,7 @@ NOTICE:  winagg: tuplestore spilled to disk  (seg1 slice1 127.0.0.1:7003 pid=547
 NOTICE:  winagg: tuplestore spilled to disk  (seg2 slice1 127.0.0.1:7004 pid=54721)
    sum   
 ---------
- 20006.5
+ 30006.5
 (1 row)
 
 SELECT gp_inject_fault('winagg_after_spool_tuples', 'reset', dbid)
diff --git a/src/test/regress/sql/misc_jiras.sql b/src/test/regress/sql/misc_jiras.sql
index 4e96bc11e52..fbd35f8b1a2 100644
--- a/src/test/regress/sql/misc_jiras.sql
+++ b/src/test/regress/sql/misc_jiras.sql
@@ -13,7 +13,7 @@ create schema misc_jiras;
 
 create table misc_jiras.t1 (c1 int, c2 text, c3 smallint) distributed by (c1);
 insert into misc_jiras.t1 select i % 13, md5(i::text), i % 3
-  from generate_series(1, 40000) i;
+  from generate_series(1, 60000) i;
 
 -- tuplestore in windowagg uses statement_mem to control the in-memory data size,
 -- set a small value to trigger the spilling.