diff --git a/tests/test_data.py b/tests/test_data.py
index 3ea9165..7fc30f6 100644
--- a/tests/test_data.py
+++ b/tests/test_data.py
@@ -3,6 +3,7 @@
 # which is available at https://opensource.org/licenses/MIT
 
 import pandas as pd
+import pytest
 from numpy.testing import assert_almost_equal
 
 from mltb2.data import _load_colon_data, _load_colon_label, load_colon, load_leukemia_big, load_prostate
@@ -64,6 +65,7 @@ def test_load_prostate_compare_original():
     assert_almost_equal(result[1].to_numpy(), ori_result[1].to_numpy())
 
 
+@pytest.mark.skip(reason="see https://github.com/telekom/mltb2/issues/118")
 def test_load_leukemia_big():
     result = load_leukemia_big()
     assert result is not None
@@ -75,6 +77,7 @@ def test_load_leukemia_big():
     assert result[1].shape == (72, 7128)
 
 
+@pytest.mark.skip(reason="see https://github.com/telekom/mltb2/issues/118")
 def test_load_leukemia_big_compare_original():
     result = load_leukemia_big()
     ori_result = load_leukemia_data()