diff --git a/spacy/tests/regression/test_issue5230.py b/spacy/tests/regression/test_issue5230.py
index 2b14ff589..9e83d6818 100644
--- a/spacy/tests/regression/test_issue5230.py
+++ b/spacy/tests/regression/test_issue5230.py
@@ -8,7 +8,6 @@ from spacy.kb import KnowledgeBase, Writer
 from spacy.vectors import Vectors
 from spacy.language import Language
 from spacy.pipeline import Pipe
-from spacy.compat import is_python2
 
 
 from ..util import make_tempdir
@@ -97,14 +96,12 @@ def write_obj_and_catch_warnings(obj):
             return list(filter(lambda x: isinstance(x, ResourceWarning), warnings_list))
 
 
-@pytest.mark.skipif(is_python2, reason="ResourceWarning needs Python 3.x")
 @pytest.mark.parametrize("obj", objects_to_test[0], ids=objects_to_test[1])
 def test_to_disk_resource_warning(obj):
     warnings_list = write_obj_and_catch_warnings(obj)
     assert len(warnings_list) == 0
 
 
-@pytest.mark.skipif(is_python2, reason="ResourceWarning needs Python 3.x")
 def test_writer_with_path_py35():
     writer = None
     with make_tempdir() as d:
@@ -135,13 +132,11 @@ def test_save_and_load_knowledge_base():
             pytest.fail(str(e))
 
 
-if not is_python2:
+class TestToDiskResourceWarningUnittest(TestCase):
+    def test_resource_warning(self):
+        scenarios = zip(*objects_to_test)
 
-    class TestToDiskResourceWarningUnittest(TestCase):
-        def test_resource_warning(self):
-            scenarios = zip(*objects_to_test)
-
-            for scenario in scenarios:
-                with self.subTest(msg=scenario[1]):
-                    warnings_list = write_obj_and_catch_warnings(scenario[0])
-                    self.assertEqual(len(warnings_list), 0)
+        for scenario in scenarios:
+            with self.subTest(msg=scenario[1]):
+                warnings_list = write_obj_and_catch_warnings(scenario[0])
+                self.assertEqual(len(warnings_list), 0)
diff --git a/spacy/tests/serialize/test_serialize_vocab_strings.py b/spacy/tests/serialize/test_serialize_vocab_strings.py
index f0bad9c10..e570b1025 100644
--- a/spacy/tests/serialize/test_serialize_vocab_strings.py
+++ b/spacy/tests/serialize/test_serialize_vocab_strings.py
@@ -2,7 +2,6 @@ import pytest
 import pickle
 from spacy.vocab import Vocab
 from spacy.strings import StringStore
-from spacy.compat import is_python2
 
 from ..util import make_tempdir
 
@@ -135,7 +134,6 @@ def test_serialize_stringstore_roundtrip_disk(strings1, strings2):
             assert list(sstore1_d) != list(sstore2_d)
 
 
-@pytest.mark.skipif(is_python2, reason="Dict order? Not sure if worth investigating")
 @pytest.mark.parametrize("strings,lex_attr", test_strings_attrs)
 def test_pickle_vocab(strings, lex_attr):
     vocab = Vocab(strings=strings)
diff --git a/spacy/tests/vocab_vectors/test_vectors.py b/spacy/tests/vocab_vectors/test_vectors.py
index 819338eeb..cc95252a6 100644
--- a/spacy/tests/vocab_vectors/test_vectors.py
+++ b/spacy/tests/vocab_vectors/test_vectors.py
@@ -6,7 +6,6 @@ from spacy.vectors import Vectors
 from spacy.tokenizer import Tokenizer
 from spacy.strings import hash_string
 from spacy.tokens import Doc
-from spacy.compat import is_python2
 
 from ..util import add_vecs_to_vocab, get_cosine, make_tempdir
 
@@ -336,7 +335,6 @@ def test_vocab_prune_vectors():
     assert_allclose(similarity, get_cosine(data[0], data[2]), atol=1e-4, rtol=1e-3)
 
 
-@pytest.mark.skipif(is_python2, reason="Dict order? Not sure if worth investigating")
 def test_vectors_serialize():
     data = numpy.asarray([[4, 2, 2, 2], [4, 2, 2, 2], [1, 1, 1, 1]], dtype="f")
     v = Vectors(data=data, keys=["A", "B", "C"])