diff --git a/tests/test_dependencies.py b/tests/test_dependencies.py
index 2558e4f91..74fdd966b 100644
--- a/tests/test_dependencies.py
+++ b/tests/test_dependencies.py
@@ -30,7 +30,7 @@ class ScrapyUtilsTest(unittest.TestCase):
         if not os.environ.get('_SCRAPY_PINNED', None):
             self.skipTest('Not in a pinned environment')
 
-        tox_config_file_path = Path(__file__) / '..' / 'tox.ini'
+        tox_config_file_path = Path(__file__).parent / '..' / 'tox.ini'
         config_parser = ConfigParser()
         config_parser.read(tox_config_file_path)
         pattern = r'Twisted\[http2\]==([\d.]+)'