setup.py | 2 +-

diff --git a/setup.py b/setup.py
index 4100bf6bce99380e62f658bf7995f0b307849ae538c78fe0313fee3997b0e05c..27a06f426fbc084784595980ee24df9823b43e363493abcfdd0ed121bda787fa 100644
--- a/setup.py
+++ b/setup.py
@@ -29,6 +29,6 @@         "Topic :: Software Development :: Libraries :: Python Modules",
     ],
     py_modules=["pyderasn"],
     extras_require={
-        "utc": ["python-dateutil~=2.8"],
+        "tz": ["python-dateutil~=2.7"],
     },
 )