diff --git a/tests/test_data.py b/tests/test_data.py
index e0bc86d..d194f64 100644
--- a/tests/test_data.py
+++ b/tests/test_data.py
@@ -11,7 +11,7 @@
 from .ori_data_loader import load_colon_data, load_leukemia_data, load_prostate_data
 
 
-@pytest.mark.flaky(reruns=3, reruns_delay=5)
+@pytest.mark.flaky(reruns=5, reruns_delay=30)
 def test_load_colon_data():
     result = _load_colon_data()  # only load data not labels
     assert result is not None
@@ -19,7 +19,7 @@ def test_load_colon_data():
     assert result.shape == (62, 2000)
 
 
-@pytest.mark.flaky(reruns=3, reruns_delay=5)
+@pytest.mark.flaky(reruns=5, reruns_delay=30)
 def test_load_colon_label():
     result = _load_colon_label()  # only load labels not data
     assert result is not None
@@ -27,7 +27,7 @@ def test_load_colon_label():
     assert len(result) == 62
 
 
-@pytest.mark.flaky(reruns=3, reruns_delay=5)
+@pytest.mark.flaky(reruns=5, reruns_delay=30)
 def test_load_colon(tmpdir):
     result = load_colon(tmpdir)
     assert result is not None
@@ -39,7 +39,7 @@ def test_load_colon(tmpdir):
     assert result[1].shape == (62, 2000)
 
 
-@pytest.mark.flaky(reruns=3, reruns_delay=5)
+@pytest.mark.flaky(reruns=5, reruns_delay=30)
 def test_load_colon_compare_original(tmpdir):
     result = load_colon(tmpdir)
     ori_result = load_colon_data()
@@ -49,7 +49,7 @@ def test_load_colon_compare_original(tmpdir):
     assert_almost_equal(result[1].to_numpy(), ori_result[1].to_numpy())
 
 
-@pytest.mark.flaky(reruns=3, reruns_delay=5)
+@pytest.mark.flaky(reruns=5, reruns_delay=30)
 def test_load_prostate(tmpdir):
     result = load_prostate(tmpdir)
     assert result is not None
@@ -61,7 +61,7 @@ def test_load_prostate(tmpdir):
     assert result[1].shape == (102, 6033)
 
 
-@pytest.mark.flaky(reruns=3, reruns_delay=5)
+@pytest.mark.flaky(reruns=5, reruns_delay=30)
 def test_load_prostate_compare_original(tmpdir):
     result = load_prostate(tmpdir)
     ori_result = load_prostate_data()
@@ -71,7 +71,7 @@ def test_load_prostate_compare_original(tmpdir):
     assert_almost_equal(result[1].to_numpy(), ori_result[1].to_numpy())
 
 
-@pytest.mark.flaky(reruns=3, reruns_delay=5)
+@pytest.mark.flaky(reruns=5, reruns_delay=30)
 def test_load_leukemia_big(tmpdir):
     result = load_leukemia_big(tmpdir)
     assert result is not None
@@ -83,7 +83,7 @@ def test_load_leukemia_big(tmpdir):
     assert result[1].shape == (72, 7128)
 
 
-@pytest.mark.flaky(reruns=3, reruns_delay=5)
+@pytest.mark.flaky(reruns=5, reruns_delay=30)
 def test_load_leukemia_big_compare_original(tmpdir):
     result = load_leukemia_big(tmpdir)
     ori_result = load_leukemia_data()