diff --git a/setup.py b/setup.py
index c50115c..2eae23c 100755
--- a/setup.py
+++ b/setup.py
@@ -52,7 +52,8 @@ setuptools.setup(
         license='GPL',
         packages=['warcprox'],
         install_requires=deps,
-        extras_require={'trough': ['trough @ git+https://github.com/internetarchive/trough.git@jammy_focal',],},
+        # preferred trough 'trough @ git+https://github.com/internetarchive/trough.git@jammy_focal'
+        extras_require={'trough': 'trough'},
         setup_requires=['pytest-runner'],
         tests_require=['mock', 'pytest', 'warcio'],
         entry_points={