diff --git a/ase/test/fio/test_mustem.py b/ase/test/fio/test_mustem.py
index 74034fb0c8d8762ba7ecf78081992cc0a9418949..248eb3988beb3a9268a022482f8f7ce80efe7771 100644
--- a/ase/test/fio/test_mustem.py
+++ b/ase/test/fio/test_mustem.py
@@ -1,4 +1,3 @@
-from distutils.version import LooseVersion
 import numpy as np
 import pytest
 
@@ -8,11 +7,6 @@ from ase.build import bulk
 from ase.atoms import symbols2numbers
 
 
-pytestmark = pytest.mark.skipif(LooseVersion(np.__version__) <
-                                LooseVersion("1.14"),
-                                reason="This test requires numpy >= 1.14")
-
-
 def make_STO_atoms():
     atoms = Atoms(['O', 'O', 'O', 'Sr', 'Ti'],
                   scaled_positions=[[0.5, 0.5, 0],
diff --git a/ase/test/fio/test_prismatic.py b/ase/test/fio/test_prismatic.py
index f919dd90b5c216c7e1a9023dfeec3786db651ff3..69fc92bf8fae9ad4ed7bce530a3d6449f3e28129 100644
--- a/ase/test/fio/test_prismatic.py
+++ b/ase/test/fio/test_prismatic.py
@@ -1,4 +1,3 @@
-from distutils.version import LooseVersion
 import numpy as np
 import pytest
 
@@ -8,11 +7,6 @@ from ase.build import bulk
 from .test_mustem import make_STO_atoms
 
 
-pytestmark = pytest.mark.skipif(LooseVersion(np.__version__) <
-                                LooseVersion("1.14"),
-                                reason="This test requires numpy >= 1.14")
-
-
 def test_write_read_cycle_xyz_prismatic():
     """Check writing and reading a xtl mustem file."""
     # Reproduce the SI100.XYZ file distributed with prismatic
diff --git a/ase/test/test_doctests.py b/ase/test/test_doctests.py
index 90bed903c929b20b0d3495fd6a3b7db8acfae489..0892740e70af484404ea4e01001f76cdf77c5ecb 100644
--- a/ase/test/test_doctests.py
+++ b/ase/test/test_doctests.py
@@ -1,6 +1,5 @@
 import doctest
 import importlib
-from distutils.version import LooseVersion
 
 import pytest
 import numpy as np
@@ -29,12 +28,6 @@ ase.symbols
 @pytest.mark.filterwarnings('ignore:Unknown solver options')
 @pytest.mark.parametrize('modname', module_names)
 def test_doctest(modname):
-    # Older numpies format arrays differently.
-    # We use the printoptions contextmanager from numpy 1.15:
-    # https://docs.scipy.org/doc/numpy/release.html#id45
-    if LooseVersion(np.__version__) < '1.15':
-        pytest.skip('need numpy >= 1.15')
-
     mod = importlib.import_module(modname)
     with np.printoptions(legacy='1.13'):
         doctest.testmod(mod, raise_on_error=True, verbose=True)