diff --git a/test_runner/regress/test_readonly_node.py b/test_runner/regress/test_readonly_node.py
index 347fc3a04d..1769226ccf 100644
--- a/test_runner/regress/test_readonly_node.py
+++ b/test_runner/regress/test_readonly_node.py
@@ -139,7 +139,7 @@ def test_readonly_node_gc(neon_env_builder: NeonEnvBuilder):
             "image_creation_threshold": "1",
             "image_layer_creation_check_threshold": "0",
             # Short lease length to fit test.
-            "lsn_lease_length": "3s",
+            "lsn_lease_length": "8s",
         },
         initial_tenant_shard_count=2,
     )
@@ -205,7 +205,7 @@ def test_readonly_node_gc(neon_env_builder: NeonEnvBuilder):
         generate_updates_on_main(env, ep_main, i, end=100)
 
     # Now trigger GC again, layers should be removed.
-    time.sleep(4)
+    time.sleep(8)
     for shard, ps in tenant_get_shards(env, env.initial_tenant):
         client = ps.http_client()
         gc_result = client.timeline_gc(shard, env.initial_timeline, 0)