diff --git a/reviewboard/dependencies.py b/reviewboard/dependencies.py
index d077b9bd014532352f55e9c500050a0e7c56f7b1..b1c3b8da4e2ecce5e249afa65958ec818f147c87 100644
--- a/reviewboard/dependencies.py
+++ b/reviewboard/dependencies.py
@@ -47,7 +47,6 @@ package_dependencies = {
     'paramiko': '>=1.12',
     'Pygments': '>=2.1',
     'pymdown-extensions': '>=3.4,<3.999',
-    'python-dateutil': '>=1.5',
     'python-memcached': '',
     'pytz': '>=2015.2',
     'Whoosh': '>=2.6',