diff --git a/src/rail/examples_data/testdata/output_BPZ_lite.hdf5 b/src/rail/examples_data/testdata/output_BPZ_lite.hdf5
new file mode 100644
index 00000000..83faec2f
Binary files /dev/null and b/src/rail/examples_data/testdata/output_BPZ_lite.hdf5 differ
diff --git a/tests/core/test_core.py b/tests/core/test_core.py
index 4b72cd96..cad1bf5d 100644
--- a/tests/core/test_core.py
+++ b/tests/core/test_core.py
@@ -107,7 +107,7 @@ def test_pq_handle():
 
 
 def test_qp_handle():
-    datapath = os.path.join(RAILDIR, "rail", "examples_data", "testdata", "output_BPZ_lite.fits")
+    datapath = os.path.join(RAILDIR, "rail", "examples_data", "testdata", "output_BPZ_lite.hdf5")
     handle = do_data_handle(datapath, QPHandle)
     qpfile = handle.open()
     assert qpfile
diff --git a/tests/estimation/test_classifier.py b/tests/estimation/test_classifier.py
index 513657fa..a9a7b99d 100644
--- a/tests/estimation/test_classifier.py
+++ b/tests/estimation/test_classifier.py
@@ -12,7 +12,7 @@
 DS = RailStage.data_store
 DS.__class__.allow_overwrite = True
 
-inputdata = os.path.join(RAILDIR, 'rail/examples_data/testdata/output_BPZ_lite.fits')
+inputdata = os.path.join(RAILDIR, 'rail/examples_data/testdata/output_BPZ_lite.hdf5')
 
 @pytest.mark.parametrize(
     "input_param", 
diff --git a/tests/estimation/test_summarizers.py b/tests/estimation/test_summarizers.py
index 8b15ff34..4a59c4db 100644
--- a/tests/estimation/test_summarizers.py
+++ b/tests/estimation/test_summarizers.py
@@ -5,7 +5,7 @@
 from rail.core.utils import RAILDIR
 from rail.estimation.algos import naive_stack, point_est_hist, var_inf
 
-testdata = os.path.join(RAILDIR, "rail/examples_data/testdata/output_BPZ_lite.fits")
+testdata = os.path.join(RAILDIR, "rail/examples_data/testdata/output_BPZ_lite.hdf5")
 DS = RailStage.data_store