https://github.com/man-group/pytest-plugins/pull/254

--- pytest-fixture-config-1.8.0/setup.py.orig
+++ pytest-fixture-config-1.8.0/setup.py
@@ -20,8 +20,7 @@
 
 install_requires = ['pytest']
 
-tests_require = ['six',
-                 ]
+tests_require = []
 
 if __name__ == '__main__':
     kwargs = common_setup('pytest_fixture_config')
--- pytest-fixture-config-1.8.0/tests/unit/test_fixture_config.py.orig
+++ pytest-fixture-config-1.8.0/tests/unit/test_fixture_config.py
@@ -1,11 +1,12 @@
+import importlib
+
 import pytest
-from six.moves import reload_module
 
 # HACK: if the plugin is imported before the coverage plugin then all
 # the top-level code will be omitted from coverage, so force it to be
 # reloaded within this unit test under coverage
 import pytest_fixture_config
-reload_module(pytest_fixture_config)
+importlib.reload(pytest_fixture_config)
 
 from pytest_fixture_config import Config, requires_config, yield_requires_config