diff --git a/test_runner/regress/test_gc_cutoff.py b/test_runner/regress/test_gc_cutoff.py
index f760c993f4..9c9b9d26c7 100644
--- a/test_runner/regress/test_gc_cutoff.py
+++ b/test_runner/regress/test_gc_cutoff.py
@@ -38,7 +38,7 @@ def test_gc_cutoff(neon_env_builder: NeonEnvBuilder, pg_bin: PgBin):
 
     for _ in range(5):
         with pytest.raises(Exception):
-            pg_bin.run_capture(["pgbench", "-N", "-c5", "-T100", "-Mprepared", connstr])
+            pg_bin.run_capture(["pgbench", "-N", "-c5", "-T200", "-Mprepared", connstr])
         env.pageserver.stop()
         env.pageserver.start()
         pageserver_http.configure_failpoints(("after-timeline-gc-removed-layers", "exit"))