diff --git a/test_runner/regress/test_pg_regress.py b/test_runner/regress/test_pg_regress.py
index 728241b465..bf7a47bde8 100644
--- a/test_runner/regress/test_pg_regress.py
+++ b/test_runner/regress/test_pg_regress.py
@@ -399,7 +399,7 @@ def test_tx_abort_with_many_relations(
     # How many relations: this number is tuned to be long enough to take tens of seconds
     # if the rollback code path is buggy, tripping the test's timeout.
     n = 5000
-    step = 2500
+    step = 500
 
     def create():
         # Create many relations