diff --git a/tests/test_pipenv.py b/tests/test_pipenv.py
index 0193090c..4bf0d98d 100644
--- a/tests/test_pipenv.py
+++ b/tests/test_pipenv.py
@@ -538,45 +538,6 @@ tpfd = "*"
             assert c.return_code == 0
             assert 'ibm-db-sa-py3' in p.lockfile['default']
 
-
-    @pytest.mark.sequential
-    @pytest.mark.install
-    @pytest.mark.update
-    def test_sequential_update_mode(self):
-
-        with PipenvInstance() as p:
-            with open(p.pipfile_path, 'w') as f:
-                contents = """
-[packages]
-requests = "*"
-records = "*"
-                """.strip()
-                f.write(contents)
-
-            c = p.pipenv('install')
-            assert c.return_code == 0
-
-            assert 'requests' in p.lockfile['default']
-            assert 'idna' in p.lockfile['default']
-            assert 'urllib3' in p.lockfile['default']
-            assert 'certifi' in p.lockfile['default']
-            assert 'records' in p.lockfile['default']
-
-            c = p.pipenv('run python -c "import requests; import idna; import certifi; import records;"')
-            assert c.return_code == 0
-
-            c = p.pipenv('update --sequential')
-            assert c.return_code == 0
-
-            assert 'requests' in p.lockfile['default']
-            assert 'idna' in p.lockfile['default']
-            assert 'urllib3' in p.lockfile['default']
-            assert 'certifi' in p.lockfile['default']
-            assert 'records' in p.lockfile['default']
-
-            c = p.pipenv('run python -c "import requests; import idna; import certifi; import records;"')
-            assert c.return_code == 0
-
     @pytest.mark.run
     @pytest.mark.markers
     @pytest.mark.install